ERW (Stretch reduction) pipe. Outside diameter: min. 3"(88.9mm) max. 16"(406.4mm) Wall thickness: min. 4mm max.12.7mm the whole ERW pipe body is hot treated and then stretch reduction from bigger diameter to smaller diam ...
Hebei Zhongyuan Steel Pipe Manufacturing Co., Ltd.
Nanhuan road, Yanshan county
Cangzhou, HB 061300