TWIN-WALL SPIRO PIPE FOR GRAVITY

Sewage and drainage ducts are mostly adopted domestically. For its unstable chemical nature and untight linkage of them, it has become a major source of pollution. In addition, It costs much in operation. Large diameter winding pipe (from 150 mm to 3000 mm in diam.) is becoming as a replacement of cement pipe and cast iron pipe since it possesses many advantages such as easy operation and low cost of assembling, tight juncture between the pipes, no pollution and so on. It is being widely used as sewage and drainage pipe nowadays.