special drain pipe
1. material: plastic and steel
2.large pressure, can used in high building and underground installation

special drain pipe is videly  used in construction water-supply, concentrate supply of heat project, freeway, electric line, oil, chemical, medicine making, food, mine, gas etc.

Specifications

PSP Composite Pipe
The main materials are PE and stainless steel. Inside and outside are PE layers, middle is steel layer. We use a special technology to bond the two plastic layers and steel layer seamless.
1. Characteristics:
1)The intensity, rigidity are better than pure plastic pipe and pure steel pipe

2) Double layers antisepsis can endure higher temperature and various chemical.
3) Smooth inside surface, not accumulate dirt, water pressure loss is less than steel pipes by 30%, 
4) Light, easy to ship and install, 
5) Reliable, workable for 50 years in normal circumstance, 
6)No pollution and environment friendly.
7) Self-shown tracer: it can be traced by magnetic metal detector, and no need to bury other tracer or protection marking, avoids excavation damage, provides convenience for repair and maintenance. 
2. Broad application: 
Chemical, Oil field, Mining, Textile, printing, dyeing and paper making, Building, Agriculture, Shipbuilding, water supply, drainage, gas, thermoelectricity engineering, food and liquid conveying in industry which is recommended by State Ministry of Construction and China Association for Engineering Construction Standardization, it's the preferred pipe for urban rural water supply in 21st century.