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This document provides an explanation of the structure and technical details of the retention infiltration method and the Tenrain-Scrum method. It includes detailed illustrations such as the "Installation Image of Tenrain," "Classification of Plastic Retention Tanks (Reference)," and "Characteristic Classification of Tenrain." Please feel free to download and read it. 【Contents (Excerpt)】 ■ Installation Image of Tenrain ■ Classification of Plastic Retention Tanks (Reference) ■ Characteristic Classification of Tenrain ■ Features of Tenrain ■ Specifications of Tenrain *For more details, please refer to the PDF document or feel free to contact us.

• Rainwater infiltration facilities
• Flood prevention facilities, fire tanks, and flood control ponds
• Rainwater tank

The rainwater retention infiltration tank "Tenrain Scrum" is an underground buried plastic storage tank that plays a role in stormwater management technology. It achieves high strength while being lightweight, boasting industry-leading void ratio (water retention rate) and robustness. It is widely adopted in parking spaces of logistics warehouses and large commercial facilities, and is utilized regardless of scale in parks, grounds, and sports fields underground. It is a disaster prevention and mitigation product developed for disaster response and rainwater utilization. It is a product that "coexists with the environment without contaminating the soil or water." 【Features】 〇 Technical evaluation certification obtained from the Japan Rainwater Retention and Infiltration Technology Association 〇 Utilizes patented technology that simultaneously meets "robustness," "strength," and "spare capacity within the tank" 〇 Equipped with an option to suppress the diffusion of sediment throughout the tank via a sediment diffusion prevention system, enhancing cleaning efficiency. 〇 Can secure a larger internal space, achieving a water retention efficiency exceeding a void ratio of 96% 〇 The voids in the tank can easily be used as water level inspection holes or ventilation openings 〇 Easy integration with disaster prevention IoT technology, facilitating the pumping of rainwater within the tank and sediment removal It enables the construction of underground facilities with high water retention capacity, excellent load-bearing capacity, and high versatility.

• Rainwater infiltration facilities
• Flood prevention facilities, fire tanks, and flood control ponds
• Rainwater tank

Due to long-term and frequent heavy rainfall caused by climate change, along with significant urbanization, serious flooding damage is occurring frequently. Rainwater retention and infiltration facilities temporarily store rainwater and gradually release it or allow it to infiltrate underground, which can reduce the burden on drainage facilities such as rivers, sewer pipes, and stormwater pipes, mitigate flooding damage in inundated areas, and lead to effective use of rainwater. In addition to being a water source for disaster toilets, these facilities can also serve as water storage tanks for disaster prevention, and with Japan's highly advanced water purification filter technology, even drinking water can be generated. 【Features】 ■ Dramatic cost reduction effect ■ Fast, safe, and reliable construction ■ Load-bearing capacity + seismic performance + high water storage capacity ■ Long-term stabilization of recycled plastics *For more details, please refer to the PDF document or feel free to contact us.

• Rainwater infiltration facilities
• Flood prevention facilities, fire tanks, and flood control ponds
• Rainwater tank

The document includes a comparison table of "retention infiltration methods and rainwater runoff control facilities." It lists the applications and performance characteristics such as the plastic method, concrete precast method, open retention basin method, and crushed stone method, as well as the shape of the tanks. Additionally, there is a description of the advantages of plastic retention tanks, so please take a moment to read it. [Contents] ■ Comparison of retention infiltration methods and rainwater runoff control facilities ■ Advantages of plastic retention tanks ■ Article introducing the advantages of plastic retention tanks *For more details, please refer to the PDF document or feel free to contact us.

• Rainwater infiltration facilities
• Flood prevention facilities, fire tanks, and flood control ponds
• Rainwater tank

This document introduces examples of rainwater retention tanks and rainwater infiltration facilities. They are widely adopted in logistics warehouse parking spaces and large commercial facility parking lots, and are utilized in parks, grounds, and sports fields regardless of scale. This is an environmentally symbiotic product developed for disaster prevention and rainwater utilization. Examples include parking lots in Koga City, Ibaraki Prefecture, Ichihara City, Chiba Prefecture, and Kasukabe City, Saitama Prefecture, as well as grounds in Isehara City, Kanagawa Prefecture. In the parking lot of Nihonmatsu City, Fukushima Prefecture, a retention-type public facility construction was carried out. Please feel free to download and take a look. 【List of Examples (Partial)】 ■Fukushima Prefecture ■Ibaraki Prefecture ■Chiba Prefecture ■Saitama Prefecture ■Kanagawa Prefecture 【Features】 ■Inspection facilities are flexible ■Easy construction without joint materials ■Excellent work efficiency ■High retention rate ■Eco-friendly system It is possible to build underground facilities with high water storage capacity, excellent load-bearing properties, and high versatility. Please be sure to check the catalog and videos, and feel free to contact us. For more details, please refer to the PDF document or feel free to reach out to us.

• Rainwater infiltration facilities
• Flood prevention facilities, fire tanks, and flood control ponds
• Rainwater tank

This document is a guide summarizing the prohibitions and instructions related to the design of the underground rainwater management method (Tenrain-Scrum method). It includes prohibitions within the scope of application as well as design considerations. Please read it carefully to ensure correct installation and to secure the performance, quality, and safety of the product, and conduct design management accordingly. [Contents] ■ Prohibitions - Scope of application ■ Instructions - Design considerations *For more details, please refer to the PDF document or feel free to contact us.

• Rainwater infiltration facilities
• Flood prevention facilities, fire tanks, and flood control ponds
• Rainwater tank

This document is an explanation summarizing the prohibited and instructed matters regarding the handling and work of the underground rainwater management method (Tenrain-Scrum method). It includes instructions and prohibitions on handling, as well as instructions for assembly and sheet work. To ensure proper construction and to guarantee the performance, quality, and safety of the product, please read this carefully and ensure that the construction is carried out correctly. [Contents] ■ Instructions - Handling - Assembly and sheet work ■ Prohibitions - Handling *For more details, please refer to the PDF document or feel free to contact us.

• Rainwater infiltration facilities
• Flood prevention facilities, fire tanks, and flood control ponds
• Rainwater tank

This document summarizes the prohibitions and instructions related to the construction of the underground rainwater management method (Tenrain Scrum Method). It includes prohibitions after the assembly of the water tank, as well as instructions regarding excavation, foundation work, transportation, earth retention, backfilling, compaction, and paving work. To ensure proper construction and to secure the performance, quality, and safety of the product, please read this carefully and conduct construction management accordingly. [Contents] ■ Prohibitions - After the assembly of the water tank ■ Instructions - Compliance - Excavation and foundation work - Transportation - Earth retention, backfilling, compaction, paving work *For more details, please refer to the PDF document or feel free to contact us.

• Rainwater infiltration facilities
• Flood prevention facilities, fire tanks, and flood control ponds
• Rainwater tank

This is an introduction to a case where the rainwater retention infiltration material "Tenrain Scrum" was adopted in a parking lot in Kasukabe City, Saitama Prefecture. The type used is a retention type. The rainwater countermeasure volume is 127m³. 【Features】 ■ Location: Kasukabe City, Saitama Prefecture ■ Category: Public ■ Project: New construction of a public facility ■ Upper usage purpose: Parking lot ■ Type: Retention type ■ Rainwater countermeasure volume: 127m³ *For more details, please refer to the PDF materials or feel free to contact us.

• Rainwater infiltration facilities
• Flood prevention facilities, fire tanks, and flood control ponds
• Rainwater tank

This is an introduction to a case where the rainwater retention infiltration material "Tenrain Scrum" was adopted in a parking lot in Nihonmatsu City, Fukushima Prefecture. The type used is a retention type. The rainwater countermeasure volume is 7,736m3. 【Features】 ■ Location: Nihonmatsu City, Fukushima Prefecture ■ Category: Public ■ Project: New construction of a public facility ■ Upper usage purpose: Parking lot ■ Type: Retention type ■ Rainwater countermeasure volume: 7,736m3 *For more details, please refer to the PDF materials or feel free to contact us.

• Rainwater infiltration facilities
• Flood prevention facilities, fire tanks, and flood control ponds
• Rainwater tank

This is an introduction to a case where the rainwater retention and infiltration material "Tenrain Scrum" was adopted at a ground in Isehara City, Kanagawa Prefecture. The type used is a retention type. The rainwater countermeasure volume is 111m3. 【Features】 ■ Location: Isehara City, Kanagawa Prefecture ■ Category: Private ■ Project: Facility expansion construction ■ Upper usage purpose: Ground ■ Type: Retention type ■ Rainwater countermeasure volume: 111m3 *For more details, please refer to the PDF materials or feel free to contact us.

• Rainwater infiltration facilities
• Flood prevention facilities, fire tanks, and flood control ponds
• Rainwater tank

This is an example of the use of "Tenrain Scrum," a rainwater retention and infiltration material, in a parking lot in Ichihara City, Chiba Prefecture. The type used was the retention type. 【Example】 ■Location: Ichihara City, Chiba Prefecture ■Category: Private ■Project: Facility expansion construction ■Upper usage purpose: Parking lot ■Type: Retention type *For more details, please refer to the PDF document or feel free to contact us.

• Rainwater infiltration facilities
• Flood prevention facilities, fire tanks, and flood control ponds
• Rainwater tank

This is an introduction to a case where the rainwater retention infiltration material "Tenrain Scrum" was adopted in a parking lot in Koga City, Ibaraki Prefecture. The type used is the infiltration type. The rainwater countermeasure volume is 1,753m3. 【Case Study】 ■ Location: Koga City, Ibaraki Prefecture ■ Category: Private ■ Property: New construction of a logistics facility ■ Upper use purpose: Parking lot ■ Type: Infiltration type ■ Rainwater countermeasure volume: 1,753m3 *For more details, please refer to the PDF document or feel free to contact us.

• Rainwater infiltration facilities
• Flood prevention facilities, fire tanks, and flood control ponds
• Rainwater tank

This is an introduction to a case where the rainwater retention infiltration material "Tenrain Scrum" was adopted in a parking lot in Ota Ward, Tokyo. The type used is the infiltration type. The rainwater management volume is 546m3. 【Case Study】 ■Location: Ota Ward, Tokyo ■Category: Private ■Property: New construction of a commercial facility ■Upper usage purpose: Parking lot ■Type: Infiltration type ■Rainwater management volume: 546m3 *For more details, please refer to the PDF materials or feel free to contact us.

• Rainwater infiltration facilities
• Flood prevention facilities, fire tanks, and flood control ponds
• Rainwater tank

Here is an introduction to a case where the rainwater retention infiltration material "Tenrain Scrum" was adopted in a parking lot in Yamaguchi Prefecture. The type used is the infiltration type. The rainwater management volume is 55m3. 【Case Study】 ■ Location: Yamaguchi Prefecture ■ Category: Private ■ Property: New construction of a rental facility ■ Upper usage purpose: Parking lot ■ Type: Infiltration type ■ Rainwater management volume: 55m3 *For more details, please refer to the PDF materials or feel free to contact us.

• Rainwater infiltration facilities
• Flood prevention facilities, fire tanks, and flood control ponds
• Rainwater tank

This is an introduction to a case where the rainwater retention and infiltration material "Tenrain Scrum" was adopted in a parking lot in Nagano City, Nagano Prefecture. The type used is a retention type. The rainwater management capacity is 1,215m3. 【Case Study】 ■Location: Nagano City, Nagano Prefecture ■Category: Private ■Upper Use Purpose: Parking Lot ■Type: Retention Type ■Rainwater Management Capacity: 1,215m3 *For more details, please refer to the PDF document or feel free to contact us.

• Rainwater infiltration facilities
• Flood prevention facilities, fire tanks, and flood control ponds
• Rainwater tank

Everyday items like room lighting, televisions, and household appliances that we always see, as well as the cars we regularly use, are essential to our lives. Our technology at TENSHO is utilized in these products. Additionally, we provide support across a wide range of fields, including office equipment, medical environments, industrial materials, and civil engineering materials. In the PDF materials, you can also view examples of projects we have undertaken. 【Main Products】 ■ Plastic molded products - Automotive parts / Home appliances / Office automation equipment / Various mechanical and functional parts Medical products / Logistics industrial materials ■ Design, production, and sales of various molds ■ Design, production, and sales of various products *For more details, please refer to the PDF materials or feel free to contact us.

• Subsidiary materials

Introducing Ten Sho Electric's decorative technology that enables new expressions. Through vacuum/pressure technology, we offer the "3D Surface Decorative Technology (TOM)" for applying and transferring films onto products, as well as "Hydro Transfer," which uses water-soluble films to transfer designs using water pressure. In the world of decoration, different materials can express weight freely and even evoke emotions. 【Decorative Technology】 ■ 3D Surface Decorative Technology (TOM) ■ Hydro Transfer ■ Coating Technology ■ Printing/Transfer Technology ■ Lacquerware Gloss Technology *For more details, please refer to the PDF document or feel free to contact us.

• Decoration and performance supplies

As technology advances, the speed of informationization and mechanization is accelerating, and we at TENSHO, as pioneers in the plastic industry, have continuously refined our technical skills while delivering numerous products. How far can we uncover the potential hidden within synthetic resin as a material? With a passion for manufacturing that aims higher, we strive to create products that transcend the realm of plastics, crossing fields such as electronics and electronic devices, and enduring through the ages. We are expanding the wings of limitless creativity while evolving our unique technologies. [Featured Products] - Automotive Parts → Interior and Exterior Parts → Engine Room - Mechanical Parts - Lighting Fixtures - Precision Mechanisms and Functional Parts, Precision Parts for Medical Devices - Thin TV Exterior Parts For more details, please contact us or download the catalog.

• Subsidiary materials

The Tenbako series is a multipurpose box that contributes to various industries. It offers excellent strength to securely protect stored items, and comes in various sizes and shapes, including a versatile height-adjustable frame. We also provide stacking and nesting types that can accommodate various scenarios, from production processes to distribution and retail. Additionally, we offer conductive Tenbako for delicate electronic components, ensuring the best Tenbako for your specific needs.

• Safety and consumables

The specialized container for infectious medical waste and infectious general waste in medical institutions is called "Mipper." It is designed to prevent odor and liquid leakage, has a strength that makes it difficult for items like needles to penetrate, and demonstrates stable loading performance during transportation. Furthermore, it does not produce harmful substances during incineration, making it recognized as a highly safe container in terms of quality and environmental aspects. "Mipper" is the first product, both domestically and internationally, to pass the "Medical Waste Container Registration Certification System," which was established for the safety of users and the prevention of environmental pollution, and is an original product of TENSHO. *Note: The medical waste container certification system has been abolished and is now the infectious waste container evaluation project.

• Safety and consumables

The M7 Tensert Rack can be widely used from magazines for automatic insertion machines for electronic components to the storage and transportation of circuit boards. It is a conductive resin product developed to protect electronic components from electrostatic damage. 【Features】 - Circuit board width adjustment can be done with one lock. - Magazine rack for automatic insertion machines for electronic components. - Ideal for the storage and transportation of circuit boards. - Lightweight yet durable. - Cost-effective by reviewing component costs. - Protects electronic components from electrostatic damage. - Can be stacked (vertically and horizontally). ● For more details, please contact us through the request for materials.

• others
• Shelves and racks