Welcome to Tianjin Guoying International Trade Co. Ltd
Manufacturer / Exporter / Supplier Of Black Steel Hollow Section, ERW Galvanized Pipe
Welcome to Tianjin Guoying International Trade Co. Ltd
Manufacturer / Exporter / Supplier Of Black Steel Hollow Section, ERW Galvanized Pipe

We are offering black steel hollow section. 1) od: 50*25mm----200*400mm wt: 2.0mm------20mm 2) length: 5.8m 6m(as customer's requirement) 3)dimension tolerance weight tolerance: +-3% 4) standard:astm-a53a, bs1387-1985, gbt3091-2008 5) grade:q195, q235

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