What is the implementation standard of hdpe hollow wall winding tube
The implementation standard is: "Underground Polyethylene (PE) Structure Wall Pipeline System" Part 2: "Polyethylene Wrapped Structure Wall Pipe" (GB / T19472.2-2004). HDPE hollow wall winding pipe is a kind of structural wall pipe made of high-density polyethylene (HDPE) as a raw material and adopting hot winding forming process, which complies with the national standard "Underground Polyethylen