MPP power pipe is made of modified polypropylene (MPP), extruded at high temperature after modified mixing.

It features excellent electrical insulation and heat resistance, applied to municipal roads, trenchless pipe jacking projects and cable laying above 10kV under roads.

Plastic inspection well is an underground drainage facility integrally injection-molded from HDPE.

With excellent sealing structure, it has fully replaced traditional brick inspection wells, becoming the preferred solution for rainwater & sewage collection, diversion and maintenance in community pipe networks.

Haierde plastic winding pipe is made of high-density polyethylene pellets.
This flexible pipe is manufactured through melt extrusion and winding molding with a unique spiral T-shaped wall structure, which greatly improves ring stiffness and compression resistance. It is specially used for municipal large-diameter rainwater & sewage drainage, river sewage discharge, factory and community buried pipe networks, applicable to heavy-load roads and soft soil foundations.

Produced from black HDPE via hot spiral winding molding.

Rectangular hollow ribs are arranged between the neat inner and outer walls, delivering outstanding hydraulic performance. Widely applied to municipal rainwater-sewage diversion, residential community drainage, park pipe networks, rural drainage, and pipelines under medium backfill or light-duty vehicle roads

Manufactured mainly from high-density polyethylene (HDPE).

This new type of pipe is produced via double-layer co-extrusion, featuring an annular outer wall and smooth inner wall. It balances high ring stiffness and low water resistance, serving as the primary pipeline for rainwater-sewage diversion, drainage & sewer networks, community pipe networks, industrial sewage discharge and farmland drainage in municipal and construction projects.

Manufactured from high-strength ductile iron via centrifugal casting. Internal cement mortar lining and external asphalt/epoxy coating greatly improve pressure resistance, seismic performance and service life. Ideal for drainage under municipal arterial roads, heavy-load roads, high-rise buildings, civil air defense projects, pipe galleries and high-temperature drainage areas