高洋商会 List of Products and Services

This is an opportunity to receive orders for small lots and custom production precast projects that have been difficult to secure due to construction time and cost constraints, through the custom formwork manufacturing by Koyo Shokai. Leveraging over 40 years of experience and know-how in producing formwork for cast-in-place concrete, we will shape the desires of our customers who say, "I want something like this!" Moreover, because our company has not only a woodworking department but also a metalworking department, we can take on everything from planning and design, including strength calculations. We can deliver within as little as one month after receiving a production request. Please feel free to contact us!

• Formwork material

"Aquatoll" is a board-type permeable concrete formwork that was born after many years of development. Compared to sheet-type forms, it can be installed without worrying about wrinkles or sagging. It is easy to install even with curved shapes or complex designs, and can be cut with a circular saw and drilled for separation holes, eliminating the need for special tools. Additionally, by requesting panel processing from our company, you can significantly reduce on-site processing time. Please feel free to consult us when needed. [Features] ■ No worries about wrinkles or sagging due to the board-like material ■ Easy installation for irregular and curved shapes ■ Simple processing minimizes the burden on craftsmen ■ Compatible with standard plywood release agents *For more details, please download the PDF or feel free to contact us.

• Formwork material

Our job is to give "shape" to concrete that would otherwise flow away as it is. We can consistently plan, design, and produce everything from circular (arch) formwork, irregular formwork, and special formwork to support materials, large formwork, and system formwork necessary for civil engineering and construction projects. We will propose solutions to shorten construction periods, reduce costs, and address the shortage of skilled workers. [Examples of Projects] ■ System Formwork ■ No-Separation Method ■ Arch Truss Support ■ Custom-Machined Formwork *For more details, please download the PDF or feel free to contact us.

• Steel
• Formwork material
• Scaffolding and Support Materials

At Takahiro Shokai Co., Ltd., we carry out various types of arched truss supports, including the "Kakogawa Ono Line," the "Tokushima Expressway," and the "Anamichi JCT." [Features] - We can propose mobile forms suitable for construction of bridge piers and tunnels. - We take responsibility for providing assembly guidance. For more details, please contact us.

• Earth retaining support
• Earthworks
• Pile and foundation work

The No-Separation method eliminates the separator, reducing costs. Additionally, there is no leakage from the separator. Since it is connected with bolts, it is easy to join the formwork materials. There are no marks left from the separator, resulting in a beautiful finish. 【Features】 - Eliminates the separator, reducing costs - No leakage from the separator (waterproof function) - Easy to join formwork materials due to bolt connections - No marks left from the separator, resulting in a beautiful finish For more details, please contact us.

• Formwork material
• Scaffolding and Support Materials
• others

We manufacture complex and specialized formwork such as ship bottom formwork, secondary curve formwork, and cedar board solid formwork with abundant experience and advanced technology. We produce a wide range of specialized formwork, including "special large ship bottom formwork," "large secondary curve formwork," and "cedar board solid formwork (arched walls)." 【Features】 ○ Abundant experience ○ Advanced technology Please contact us for more details.

• Spiral staircase
• Wooden stairs
• others

Koyo Trading Company is a comprehensive manufacturer of concrete formwork used in various construction projects. We manufacture and sell formwork for building construction, bridge piers, wagons, box culverts, shafts, tunnels, and more. In recent years, to meet the diverse needs of the field, we developed a transparent resin concrete formwork called "Mieru Form" (NETIS registration number KK-080044-VG, registration period ended) and, starting in December 2019, re-registered it as a new technology under the name "Clear Form" (NETIS registration number KK-190028-A), which allows for free design, offering proposals for creating safe and secure structures. Koyo Trading Company provides not only simple formwork design but also comprehensive planning tailored to the site. 【Features】 ○ Originality ○ Design and planning capabilities ○ 20 years of experience For more details, please contact us.

• Bridge Construction
• Special Construction Method
• Architectural CAD

The transparent acrylic concrete formwork "Miere Form" uses a resin with the highest transparency of 92.6% light transmittance, making it easy to visually confirm the concrete pouring conditions and pre-pouring status. It excels in natural lighting on site and contributes to increased safety. There have been over 1,000 deliveries registered in various prefectures, and it is listed in NETIS. *Free samples of Miere Form are currently available! Take this opportunity to try it out! 【Features】 ◆ The height of the ribs can be ordered freely, allowing for a wide variety of formwork! ◆ Many repurposing options are possible while maintaining high transparency! ◆ NETIS registration number "KK-080044-VG" (registration period has ended) *For more details, please contact us or download the catalog to view.

• Synthetic Resin Plywood
• Formwork material
• Reinforced concrete construction

Koyou Trading Company is a manufacturer of concrete formwork for civil engineering and construction. Among them, we have strengths in structures that require complex circular processing and three-dimensional processing, making us one of the few unique manufacturing companies in Japan. We contribute to labor-saving and cost reduction in the construction industry with our original methods! Here, we will introduce not only company information but also the strengths and characteristics unique to Koyou Trading Company, various products through processing, and examples of construction. 【Company Information Contents】 1. Introduction 2. About Koyou Trading Company 3. Strengths and Characteristics of Koyou Trading Company 4. Products of Koyou Trading Company 5. Examples of Construction 　　　　　　　　↓　　↓　　↓　　↓　　↓　　↓ *For details regarding the above contents, please contact us at the address below or download the catalog.

• Special Construction Method
• others

The "System Formwork" is a large-scale formwork that combines circular formwork processed by Koyou Shokai and steel processing. We address challenges at construction sites such as "labor shortages and a decrease in skilled workers," "extended construction periods," and "profit pressure due to rising costs" with the technology and know-how cultivated through formwork processing. 【Features】 ■ Integrated production system from drawing creation to manufacturing ■ Experience in formwork processing and know-how from large-scale sites ■ Cost-effective material costs due to the use of wooden formwork ■ Assembly of our own products is also carried out ・Obtained construction industry license in February 2016 For more details, please contact us or download the catalog.

• Steel
• Formwork material

Kōyō Trading Company is one of the few unique companies in Japan that can offer total solutions for formwork and shoring. Our original method, the "System Formwork," is a large formwork system that combines uniquely processed circular formwork with steel processing. We solve on-site problems with the technology and know-how cultivated through formwork processing! 【Suitable for these on-site issues!】 Labor shortages and a decrease in skilled workers, prolonged construction periods, profit pressure due to rising costs…etc. 【Features】 ■ Experience in formwork processing and abundant know-how from large-scale sites! ■ Economic material costs due to the use of wooden formwork! ■ Construction possible with a small number of workers! ■ Reduced assembly time! ■ Obtained construction industry license in February 2016, allowing assembly of our own products! *For more details, please contact us or download the catalog below.

• Steel

Currently, there is a growing demand for visualizing formwork construction and ensuring reliable construction management to address the issue of construction defects in structural slits, which is gaining attention. "Mielle Slit" allows for concrete placement while visually confirming the position of structural slits by using transparent formwork around the slit construction area. This helps prevent the occurrence of structural defects due to misalignment or construction defects, as well as the decline in quality and increase in costs associated with repair work, contributing to the construction of safe, reliable, and high-quality reinforced concrete structures. 【Features】 ■ Uses transparent formwork around the slit construction area ■ Allows for visual confirmation ■ Battens are processed to accommodate slits ■ Reduces quality decline and cost increases due to repair work *For more details, please refer to the PDF document or feel free to contact us.

• Vibration isolation, vibration control, and earthquake resistance construction
• Concrete wall
• Formwork material

The transparent acrylic concrete formwork "Clear Form" uses a resin with the highest transparency of 92.6% light transmittance, making it easy to visually confirm the concrete pouring situation and pre-pouring conditions. It excels in natural lighting on site and contributes to increased safety. There are over 2,000 delivery records across various prefectures, and it is registered with NETIS. *Technical materials with construction photos are currently available! For more details, please download from the form below. [Features] ● The height of the ribs can be freely ordered, allowing for a wide variety of formwork! ● Many repurposing options are possible while maintaining high transparency! ● NETIS registration number "KK-190028-VE" *For more details, please contact us or download the catalog for more information.

• Synthetic Resin Plywood
• Formwork material
• Bridge Construction

"Ractomail" is a specialized hardware for large formwork that eliminates the need for installing wing bolts, significantly reducing work time. It is widely effective for large formwork construction of bridge piers and shafts, as well as for tunnel centering formwork and other sites requiring formwork installation. It addresses the challenges of large formwork, such as the time-consuming installation of components. [Features] - Strong support for temporary formwork, simplifying the nailing process - Dual functionality with wing bolts - Significant reduction in installation work - Shortening of large assembly work - Effective in reducing total costs *For more details, please refer to the PDF materials or feel free to contact us.

• Support hardware/opening hardware
• Work tools

The "Cedar Board Real Type Formwork" allows the wood grain to emerge on the concrete surface, giving a soft impression similar to that of wooden structures, despite being made of concrete. It is often used in government offices, shrines, temples, and private homes, where decorative effects are expected, and it has a strong track record in historically rich areas, buildings, museums, and construction projects. 【Features】 ■ The wood grain emerges on the concrete surface ■ Can provide a soft impression similar to that of wooden structures ■ Has a strong track record in historically rich areas and buildings We have many processing achievements with Cedar Board Real Type Formwork! Please feel free to consult us about curves and special shapes. *For more details, please refer to the PDF materials or feel free to contact us.

• Formwork material
• Wood panel and frame wall construction
• Concrete wall

This document introduces the "Processing of Wooden Board Formwork." This processing method allows the finish of exposed concrete to have a texture similar to that of wooden structures. It is a type of formwork processing that involves applying convex and concave shapes to the sides of boards to join two pieces of wood together. Commonly used in locations such as government buildings, shrines, temples, and private homes, the main purpose is often focused on "aesthetics and landscape," although some regions are committed to local production for local consumption. [Contents (Excerpt)] ■ Overview ■ Purpose ■ Research Results ■ Production Process ■ Delivery Records, etc. *For more details, please refer to the PDF document or feel free to contact us.

• Formwork material
• Wood panel and frame wall construction
• Concrete wall

This document introduces examples of production that utilize Takayoshi Shokai's woodworking technology and acrylic and steel processing technology. Our company specializes in wooden formwork, acrylic processing, and steel processing. We have responded to various requests by leveraging our processing know-how. Here, we will introduce some of these examples. [Featured Examples] ■ Processing of doors for temporary coin showers ■ Production of a full-scale steel beam mock-up (model) ■ Production of wooden molds for decorative concrete ■ Production of acrylic processing - Miniature tunnel for testing - Transparent level *For more details, please refer to the PDF document or feel free to contact us.

• Formwork material
• wood
• Concrete wall

The Mieru Form (currently Clear Form) has an extremely high level of transparency, making it easy to visually confirm the concrete pouring conditions and pre-pouring conditions. It excels in natural lighting within the worksite, contributing to work safety. It can be combined with conventional formwork, and since the height of the ribs can be ordered freely, it can accommodate a wide variety of formwork. Additionally, by handling it carefully, it can be reused in a state of high transparency many times. We will consider reuse and disposal at Takahiro Shokai's factory. Please consult us regarding post-use processing. 【Features】 ○ Extremely high transparency ○ Compatible with conventional formwork ○ Excellent reusability ○ New Technology Information System NETIS registration number KK-190028-VE *For more details, please contact us or download the catalog.

• Synthetic Resin Plywood
• Formwork material
• Bridge Construction

"Clear Form" is a concrete formwork made from transparent resin. The interior is visible, allowing for easy visual confirmation of the pouring situation. It has high transparency and excellent light transmission, contributing to improved workability and safety. With careful handling, it can be reused multiple times while maintaining transparency and strength. It can accommodate various shapes, including curved and chamfered processing. 【Features】 ■ The resin panel is excellent in weather resistance and impact resistance, preventing scratches. ■ The frame material is lightweight and has excellent workability, made from lauan wood. ■ A two-component polyurethane resin is applied to the entire surface, providing weather resistance and gloss retention. ■ Registered with NETIS (KK-190028-VE). ■ Utility model registered (No. 3144648). *For more details, please refer to the materials. Feel free to contact us with any inquiries.

• Ready-mix concrete
• Formwork material
• Reinforced concrete structural systems (including PCa)

This document explains the terminology used in the formwork industry. It introduces numerous terms such as "horse frame," which is the platform used for large framework assembly, as well as "ankou," "salt damage," "cover," and others, using images and illustrations. Please feel free to download and read it. 【Contents (excerpt)】 ■Light ■Rise ■Pockmark ■Ankou ■Corner *For more details, please refer to the PDF document or feel free to contact us.

• Formwork material
• Work tools

This document provides a detailed explanation of the basic knowledge of formwork. It also introduces the specifications of circular panels, circular formwork, the process of formwork creation, and various types of formwork, using images and diagrams. Please feel free to download and read it. 【Contents】 ■ What is formwork ■ Basic knowledge of formwork ■ Circular formwork ■ The process of formwork creation ■ Types of formwork 1-3 *For more details, please refer to the PDF document or feel free to contact us.

• Formwork material

This document provides a detailed explanation of the overview of hardware components for each product. We introduce a variety of items, including separators, form ties, U-clips, and wide panel beams, along with reference photos and diagrams. Please feel free to download and read it. 【Contents (excerpt)】 ■ Table of Contents ■ Separator ■ P-Connector ■ Form Tie ■ Washer *For more details, please refer to the PDF document or feel free to contact us.

• Parts and Materials

This document provides a detailed explanation of the types and uses of architectural formwork processing. Additionally, it includes information on how to read drawings, symbols used in drawings, terminology related to architectural processing and stair processing, as well as information on cedar board processing. Please feel free to download and read it. 【Contents (excerpt)】 ■ Types of buildings ■ How to read drawings ■ About drawing symbols (legend) ■ Terminology explanation for architectural processing ■ Stair processing *For more details, please refer to the PDF document or feel free to contact us.

• Processing Technology

This document provides a detailed explanation of steel formwork foundations. It covers the characteristics of steel formwork, discusses whether wooden or steel formwork is better, lists the hardware used for steel formwork, and includes examples of steel formwork. Please feel free to download and read it. [Contents] ■ Characteristics of steel formwork ■ Which is better, wooden or steel? ■ Hardware used for steel formwork ■ Examples of steel formwork *For more details, please refer to the PDF document or feel free to contact us.

• Formwork material

This document provides a detailed explanation of ready-mixed concrete. It introduces topics such as "uses and types of concrete," "lateral pressure," and "loads" using images and diagrams. Please feel free to download and read it. 【Contents】 ■ Uses of concrete ■ Types of concrete ■ What is lateral pressure? ■ Loads *For more details, please refer to the PDF document or feel free to contact us.

• Ready-mix concrete

This document provides a detailed explanation of the types and uses of civil engineering formwork. It introduces the assembly methods and processes for bridge pier construction, caissons and shafts, tunnel portal assembly, and various centering procedures, using images and diagrams. Please feel free to download and read it. 【Contents (excerpt)】 ■ Types of Civil Engineering Structures - Bridge pier construction - Substructure of bridge piers - Superstructure of bridge piers - Caissons and shafts *For more details, please refer to the PDF document or feel free to contact us.

• Formwork material

SASAE-RU supports the rehabilitation method for sewer pipes in harsh environments! 【Product Benefits】 - Reduced work time - Reduced work burden - Cost savings - Support for shoring plan 【Features】 - Reduced number of bolts and components to shorten work time - Designed with transportability and packaging in mind to reduce work burden - Shape designed with repurposing in mind to cut costs - Manufacturer-made shoring backed by strength tests - Support from shoring plan *For more details, please contact us or download the catalog.

• Piping materials (concrete pipes)

Introducing Takahiro Shokai Co., Ltd.'s "Permeable Board Formwork." Since it can be cut with a circular saw and drilled for separation holes, no special tools are required. It can use regular oil-based and water-soluble release agents. Additionally, we will be exhibiting at the "Construction Technology Exhibition 2023 Kinki" held in Zone C, Hall 6 at Intex Osaka. Please check the basic information for more details. 【Features】 ■ Improved workability for formwork installation ■ Enhanced appearance of concrete surfaces ■ Improved quality of concrete *For more details, please refer to the PDF materials or feel free to contact us.

• Formwork material

We would like to introduce the "Permeable Board Formwork" handled by Takahiro Shokai Co., Ltd. This product has recently been registered with NETIS (NETIS registration number KK-230041-A). By discharging excess water from the concrete, it results in a dense structure and improves durability. Additionally, it is easy to install even with curved or complex shapes, and can be cut with a circular saw and drilled for separation holes, eliminating the need for special tools. 【Features】 ■ Improved workability for formwork installation ■ Enhanced appearance of concrete surfaces ■ Improved quality of concrete *For more details, please refer to the PDF materials or feel free to contact us.

• Formwork material

At Takahiro Shokai Co., Ltd., we accept orders for the production of wooden molds for precast concrete. This is an opportunity for us to take on precast projects that have been difficult to order in small lots or as one-off productions due to construction time and cost constraints, through Takahiro Shokai's custom mold manufacturing. With over 40 years of experience and know-how in creating molds for cast-in-place concrete, we can turn our customers' desires of "I want something like this!" into reality. Moreover, because our company has not only a woodworking department but also a metalworking department, you can hand over the entire planning and design phase, including strength calculations. We can deliver within as little as one month after receiving your production request. Please feel free to contact us! 【Features】 ■ Complete handover possible ■ Achieves low costs ■ Quick response *For more details, please refer to the PDF materials or feel free to contact us.

• Formwork material