China Hebei Zhonghai Steel Pipe Manufacturing Co, .Ltd is one of the best professional manufacturers specializing in producing:

1. Seamless steel pipe (Hot-expanded and hot-rolled steel pipe),
2. SSAW steel pipe(Spiral-seam steel pipe),
3. LSAW steel pipe(Straight-seam steel pipe),
4. ERW steel pipe(Electric Resistance Weld).

Our company manufactures various kinds of diameter (89mm--1220mm) and wall thickness (2mm--60mm). Not only base on ISO9001-2000 series, but also passed the certification of API. And the annual production capacity reaches 200000tons, the quantities of export is...

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