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  1. Home
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  3. EPJ
Building materials, supplies and fixtures manufacturers
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EPJ

Establishment2017/08/03
addressTokyo/Chuo-ku/604 Blue Heights Kayabacho, 2-17-3 Kayabacho, Nihonbashi
phone03-5643-8137
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last updated:Aug 06, 2025
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  • Company information
  • Products/Services(31)
  • catalog(24)
  • news(10)

EPJ Company Profile

Imagine the "now" of the market and create the "future" of the market.

A manufacturer specialized in planning, design, and engineering. We focus on product development to solve various issues at construction sites, providing innovative, cutting-edge, and ecological products. Please feel free to contact us.

Business Activities

1. Planning, manufacturing, sales, and processing of rubber products and plastic products 2. Planning, manufacturing, and sales of construction hardware 3. Sales and import/export of air conditioning equipment, heating and cooling equipment, electrical equipment (including these materials), and building materials 4. Sales and import/export of civil engineering materials

Related Videos

Recommended information

Lightweight polyethylene pedestrian passage (pedestrian opening) "EP Sleeve"! Labor-saving!

Lightweight polyethylene pedestrian passage (pedestrian opening) "EP Sleeve"! Labor-saving!

High-density polyethylene pedestrian passage (pedestrian opening) "EP-Sleeve" - Lightweight, high strength, and a proposal for labor-saving! [Coming soon]

Polyethylene Personnel Access Hole (Personnel Access Port) EP-Sleeve In response to everyone's requests, we are excited to announce its upcoming release! ■ High Pressure Strength: The smooth double structure of the corrugated inner surface makes it resistant to impact and external pressure, providing excellent flat strength. ■ Lightweight Material: Compared to rigid PVC pipes, it is lightweight. It enhances transportation and work efficiency, contributing to "labor-saving" at construction sites. ■ Rust Resistant: Made of high-density polyethylene, it is safe and secure for installation in water areas! ■ Cold and Chemical Resistant: Compared to rigid PVC pipes, it is suitable for installation in extremely cold regions and shows no degradation against most chemicals. "Lightweight accelerates efficiency on site!" A material that combines high pressure strength with the lightweight that leads to direct workability. In particular, rigid PVC pipes weigh about 53 kg/m, while polyethylene sleeves weigh about 17 kg/m, showcasing an overwhelming weight difference! We guarantee a significant improvement in work efficiency at construction sites. Furthermore, it also reduces the burden on workers and lowers the risk of accidents, contributing to enhanced safety! *For details, please request a catalog from "Contact Us" or view the PDF data from "Download."

Products/Services (31)

Proposal for Pipe-in-Sleeve in Seismic-resistant High-rise Building Design product image
Proposal for Pipe-in-Sleeve in Seismic-resistant High-rise Building Design
Shorten construction time with EP sleeves for construction sites! product image
Shorten construction time with EP sleeves for construction sites!
Polyethylene Sleeve / Access Hole (Human Access Port) CAD Data List product image
Polyethylene Sleeve / Access Hole (Human Access Port) CAD Data List
Pipe-in-Sleeve (PIS) CAD Data List product image
Pipe-in-Sleeve (PIS) CAD Data List

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catalog(24)

Survey responses are required to view e-book details. Click to view the e-book.

Coming soon! High-density polyethylene pedestrian passage (pedestrian opening) "EP Sleeve" Lightweight! Labor-saving! A4

Coming soon! High-density polyethylene pedestrian passage (pedestrian opening) "EP Sleeve" Lightweight! Labor-saving! A4

PRODUCT
  • E-book viewing
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[Adoption Results] Tome Taro Water Stop / Flood Prevention and Water Resistance Promotion Project Edition

[Adoption Results] Tome Taro Water Stop / Flood Prevention and Water Resistance Promotion Project Edition

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All-purpose release agent "Pikaristar" stripping agent and remover [Electricity and Communication Equipment Edition]

All-purpose release agent "Pikaristar" stripping agent and remover [Electricity and Communication Equipment Edition]

PRODUCT
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[Underground beam sleeve/flood prevention/waterproofing] Waterproof sleeve for underground exterior walls "Pipe in Sleeve" A4 size

[Underground beam sleeve/flood prevention/waterproofing] Waterproof sleeve for underground exterior walls "Pipe in Sleeve" A4 size

PRODUCT
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news(10)

Production will start" Polyethylene sleeve / access hole (access port) "EP-Sleeve

  • PRODUCT

Polyethylene Human Passage (Human Passage Opening) EP-Sleeve ■ High Pressure Resistance: Due to its smooth double structure with a corrugated inner surface, it is strong against impacts and external pressure, possessing excellent flat strength. ■ Lightweight Material: Compared to rigid PVC pipes, it is lightweight. It enhances transportation and work efficiency, contributing to "labor-saving" at construction sites. ■ Rust Resistant: Made of high-density polyethylene, it is safe and secure for installation in water areas! ■ Cold and Chemical Resistant: Compared to rigid PVC pipes, it is suitable for installation in extremely cold regions and shows no deterioration against most chemicals. The polyethylene sleeve "accelerates the 'efficiency' of the site with its 'lightweight'!" A material that combines high pressure strength with "lightweight," which leads to direct construction usability. In particular, while rigid PVC pipes weigh about 53 kg/m, the polyethylene sleeve weighs about 17 kg/m, showcasing an overwhelming weight difference! We guarantee a definite improvement in work efficiency at construction sites. Furthermore, it also contributes to reducing the burden on workers and lowering accident risks, enhancing safety!

Dec 05, 2025

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J392f11zp8hgr8u1760493563_1760493614.png

We have started publishing CAD.

  • OTHER

We are sequentially publishing various cross-sectional diagrams of Tome TaroⓇ filling, such as Pipe in Sleeve and EP-Sleeve. Please make use of them.

Oct 15, 2025

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Lightweight! Polyethylene pedestrian passage (pedestrian entrance) is set to be released.

  • PRODUCT

"Lightweight" accelerates "efficiency" on site! Materials that combine high pressure resistance and direct workability with "lightweight." In particular, rigid polyvinyl chloride pipes (PVC) weigh about 53 kg/m, while polyethylene sleeves weigh only about 17 kg/m, showing a significant weight difference! We guarantee a definite improvement in work efficiency at construction sites. Furthermore, it also contributes to reducing the burden on workers and lowering the risk of accidents, enhancing safety!

Oct 01, 2025

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Detailed information

Company name EPJ
Contact addresspostalcode 103-0025 Tokyo/ Chuo-ku/ 604 Blue Heights Kayabacho, 2-17-3 Kayabacho, NihonbashiView on map TEL:03-5643-8137 FAX:03-5643-8138
Industry Building materials, supplies and fixtures manufacturers
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