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ERW Steel Pipe factory

TEL:+86 022 28896655 68586699
FAX:+86 022 59511005
www.szt-sp.com

Spiral Welded Steel Pipe factory

TEL:+86 022 28896655 68586699
FAX:+86 022 59511005
www.szt-sp.com

Oil Casing Pipe factory

TEL:+86 022 28896655 68586699
FAX:+86 022 59511005
www.szt-sp.com



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