鋼商 List of Products and Services

A "box culvert" is a hollow, box-shaped structure that is buried under roads and used for accommodating passageways, waterways, and communication lines. The box culverts we handle have been newly developed as precast products under high manufacturing technology and quality control to shorten construction periods. Please feel free to consult us regarding the dimensions of the box shape and soil cover. 【Features】 ■ High precision ■ Economical ■ Short construction period *For more details, please refer to the PDF materials or feel free to contact us.

• Civil Engineering Method
• Concrete Retaining Wall
• Concrete block, ALC panel, extrusion molded cement board construction

The "High Touch Wall" is a precast L-shaped retaining wall that exceeds 3 meters in height. It has passed rigorous tests for seismic resistance, load-bearing capacity, and durability conducted by the Ministry of Land, Infrastructure, Transport and Tourism, and has been certified by the Minister of Construction. Manufactured at a certified factory of the Japan National Land and Housing Technology Association, it is of high quality. If within the certification conditions, design and calculations are not required, and since it does not need to be cast on-site, construction can be completed in a short period. As an option, a decorative exterior wall with excellent design can be applied to the front wall. 【Features】 ■ Reflects the results of analysis on behavior during earthquakes ■ Required soil bearing capacity for the foundation is specified ■ By ensuring a 4 cm cover for the rebar, it has a durability of 100 years ■ Uniform products with thorough quality control due to factory production ■ Contributes to shortening construction time and labor savings through mechanical construction *For more details, please refer to the PDF materials or feel free to contact us.

• Civil Engineering Method
• Concrete Retaining Wall
• Concrete block, ALC panel, extrusion molded cement board construction

The "New Walcon III Type" is an improved version of the "New Walcon," which has been certified by the Minister as a precast reinforced concrete L-shaped retaining wall. In addition to further labor-saving and shortening of construction time compared to conventional methods, it is also possible to choose an appearance that matches the surrounding landscape. This allows for a wide range of applications and enables a safer and faster finish. It is particularly suitable for residential land development projects. 【Features】 ■ Improved version of the Minister-certified product "New Walcon" ■ Usable within regulated areas for residential land development ■ Appearance can be selected to match the surrounding landscape ■ Labor-saving and reduced construction time ■ Usable for a wide range of applications *For more details, please refer to the PDF materials or feel free to contact us.

• Civil Engineering Method
• Concrete Retaining Wall
• Concrete block, ALC panel, extrusion molded cement board construction

"New Walcon" is an L-shaped retaining wall made of precast reinforced concrete. As a precast product, it can be freely used even in areas subject to land development regulations. Previously, construction required either cast-in-place concrete walls or stacking numerous concrete blocks, which demanded significant labor and long construction periods. However, this product greatly contributes to the effective use of land and labor-saving in operations. 【Features】 ■ Minister of Construction Certification ■ Precast Product ■ Usable in land development regulation areas ■ Effective land utilization ■ Labor-saving operations *For more details, please refer to the PDF document or feel free to contact us.

• Civil Engineering Method
• Concrete Retaining Wall
• Concrete block, ALC panel, extrusion molded cement board construction

"Arch Culvert" is a precast concrete product with a box shape at the bottom and an arch shape at the top. Due to its structure, it possesses high strength and stability, making it suitable for various applications such as sewers, drainage channels, underground rivers, and underground roads. By using rubber rings at the joints, it ensures high watertightness, and the flexibility of the rubber rings allows for some uneven settlement of the ground, eliminating concerns about leakage. Additionally, it does not require mortar joints, allowing for easy installation and cost-effectiveness due to shortened construction time. [Features] ■ Cost-effectiveness due to high strength ■ High watertightness from rubber rings ■ Flexibility from the elasticity of rubber rings ■ Cost-effectiveness from shortened construction time *For more details, please refer to the PDF materials or feel free to contact us.

• Civil Engineering Method
• Concrete Retaining Wall
• Concrete block, ALC panel, extrusion molded cement board construction

The "SP Block III Type" is known as the speed soil retention prefabricated method, which involves creating large box-shaped retaining walls from concrete and stacking them up to a specified height one layer at a time. This block is an improved version of the conventional "SP Block," developed with a 5-degree slope for better workability. Compared to traditional methods, it can be constructed in a shorter period and demonstrates effectiveness as a strong and economical retaining wall. 【Features】 ■ Used as a retaining wall for general civil engineering work ■ Utilizes blocks developed with a 5-degree slope by improving the "SP Block" ■ High stability, with increased strength through stacking ■ No masonry required ■ Easy to install, reducing construction time *For more details, please refer to the PDF materials or feel free to contact us.

• Special Construction Method
• Civil Engineering Method

The "SP Block" is known as the speed soil retention prefabricated method, where concrete is formed into large box-shaped retaining walls that are stacked to a specified height one layer at a time. It is used for soil retention in road construction, land development, and river or waterway bank protection. Compared to conventional methods, it can be constructed in a shorter period and demonstrates effectiveness as a strong and economical retaining wall. 【Features】 ■ Used as a retaining wall for general civil engineering works ■ High stability, with increased strength through stacking ■ No need for core concrete or backfill gravel ■ Easy to construct, reducing construction time ■ Clearer guarantee of wall quality *For more details, please refer to the PDF materials or feel free to contact us.

• Special Construction Method
• Civil Engineering Method

The "Footingless Panel Method" is a construction technique designed to address issues in narrow sites where large machinery cannot enter or where existing structures obstruct the work. By eliminating the footing (base slab), this method increases flexibility during construction and is effective even in sites with poor ground conditions. Additionally, it is a cost-effective method. 【Features】 ■ Effective in sites where excavation width is limited ■ Economical in sites with less favorable ground conditions ■ Allows construction in narrow sites *Our company is the distributor for the Footingless Panel Method in the Hokkaido and Tohoku areas. *For more details, please download the PDF or feel free to contact us.

• Special Construction Method