Polyethylene pipe (Polyethylene pipe), referred to as PE pipe, is a pipeline made of polyethylene resin as the main raw material. PE pipe produced by the Donghong Pipe industry, with an outer diameter from 20-1200mm, has a series of water supply and drainage, mine antistatic, super wear-resistant, antibacterial, and so on.

PVC-O pipe with its unique design and advantages, strong impact resistance. It can be widely used in drinking water distribution network, pressure drainage pipeline, construction, farmland irrigation, power and other fields.

Compared with traditional pipe, PVC-U casing pipe has the advantages of light weight, corrosion resistance, low water flow resistance, energy saving, convenient installation and low cost. Hygienic, non-toxic and environmentally friendly PVC-U casing pipe has been replacing traditional pipes with high energy consumption, high pollution, high cost and low health index.

DPHI is an engineering pipe manufacturer, pipe engineering service provider, and pipe engineering general contractor specializing in the wholesale and retail of "rainwater and sewage separation special pipes, municipal area special pipes, industrial area special pipes, and special pipes for national key projects." Its main products include functional and customized pipes in four categories: rainwater and sewage separation pipes, municipal area special pipes, industrial area special pipes, and special pipes for national key projects. The products are further divided into HDPE pipes, UPVC pipes, OPVC pipes, SRTP composite pipes, coated steel pipes, fittings, etc. It has built an industrial ecosystem involving design institutes, financial institutions, logistics companies, construction units, and upstream and downstream enterprises, aiming to use intelligent pipes to change human life and ensure the safety of pipe transportation for eternity. The company is committed to becoming a global leading provider of comprehensive pipe system solutions.

HDPE Conduit, High Density polyethylene (HDPE) conduit, is a pipeline material widely used in cable protection, drainage systems, gas transmission and other fields.