マンホール商会 List of Products and Services

This catalog provides a comprehensive introduction to the "Original Hand Hole" handled by Manhole Trading Company. Made from fiberglass reinforced cement, these products are thin and lightweight, allowing for manual installation. It includes various models such as the "Ultra Lightweight Type (GRC)" and government specification compliant products like "MHS450□×700RH" and "MHS800□×1400RH." Please utilize this for selecting products. [Contents] ■ MHK Type: 450/600/750/800/900/1000/1200/1500 ■ Stacked Type: Lightweight Type 300 to 1000 / Electrical Type (City Type) 300 to 1500 / Ultra Lightweight Type 450 to 1000 ■ MHS Type: 450/600/800/900/1000/1200/1500/2000 ■ Resin Type: 450/600/900/1200/1500 *For more details, please refer to the PDF document or feel free to contact us.

• others

This catalog provides a comprehensive introduction to the "hand holes for power supply" handled by the Manhole Trading Company. Equipped with standard reflectors, it features the large-capacity transformer hand hole "1300RS-C200," which accommodates large-capacity apartment transformers (50+500kVA), as well as various products such as the PMB adjustment block "C100/A-2" and the steel frame for high-voltage circuit breakers "H500." Please use this for selecting products. [Contents] ■ Low Voltage - Hand holes for large-capacity transformers - Hand holes for apartment buildings - Hand holes for pad mounts ■ High Voltage - Hand holes for pillar boxes - Hand holes for A-1 cabinets *For more details, please refer to the PDF document or feel free to contact us.

• others

This product features excellent bending strength and impact resistance, as well as significant crack resistance, allowing for various design moldings for inspection openings. Utilizing the properties of glass fiber reinforced cement, it enables thin-walled molding, contributing to weight reduction. Additionally, during inspections, the lid can be easily removed and installed using only a screwdriver, enhancing work efficiency. 【Features】 ■ Possible to shorten construction time ■ Uniform quality due to factory production, with a very clean finish ■ Easy to install ■ Resistant to moisture ■ Brass inserts *For more details, please refer to the PDF document or feel free to contact us.

• Inspection hatches, manhole covers, and ditch covers

The "MC-50" is a compact, multifunctional backflow prevention plug. Installation is easy with a screw mechanism. If you have a hand hole equipped with the existing shut-off valve "C-50," you can simply replace and install it. Additionally, all parts are designed to be snap-fit, making disassembly and assembly simple. As a result, even if foreign objects cause a blockage due to abnormalities, disassembly and cleaning have become easy. 【Features】 ■ Easy installation with a screw mechanism ■ Compact size ■ Multifunctional ■ Easy maintenance ■ All parts are snap-fit *For more details, please refer to the PDF document or feel free to contact us.

• others

This product is a hand hole that is attractive for its mobility. Its weight is less than 1/10 that of concrete. By using FRP (fiber-reinforced plastic), it is very light and thin, allowing for on-site processing of pipeline holes. Additionally, it enables safe work without relying on heavy machinery, which can reduce various accidents caused by heavy equipment. 【Features】 ■ Light ■ Easy and safe ■ Economical ■ Weight is less than 1/10 that of concrete ■ Cost reduction through personnel reduction and shortened construction time *For more details, please refer to the PDF document or feel free to contact us.

• others

The "Protective Sheet for Iron Covers φ700" is a sheet designed to simply prevent dirt on iron covers at construction sites. It reduces the labor and time required for cleaning during inspections and handovers. Additionally, it allows the covered lid to be set into the receiving frame, which is effective for safety and aesthetics during work. 【Features】 ■ Reduces labor and time for cleaning ■ Allows the covered lid to be set into the receiving frame ■ Usable for various iron covers with a nominal diameter of φ600 or less (outer diameter of the lid less than φ700) *For more details, please download the PDF or feel free to contact us.

• Civil Engineering Sheet
• Inspection hatches, manhole covers, and ditch covers