Ígwè nchara nke na-enweghị eriri maka pipelines, finings pipe, ngwa ọrụ na usoro arụ ọrụ
Na-enweghị nchara nchara maka ihe owuwu
GB / T 8162-2008 10 # steel, 20 # steel, 35 # steel, 45 # q340, wdg, wdg
Nchara carbon na alloy nchara
ASTM A519-2006 1018, 1026, 8620, wdg
Ngwurugwu na-enweghị usoro na-acha uhie uhie na-acha uhie uhie
Bs en 10210-1006 s235grh, s275joh, s275j2h, wdg
Na-enweghị atụ, welded na-ekpo ọkụ
ASTM A53 / A53m-2012 GR. A, gr.b
