Lian yungang jinchang Special steel CO.,LTD -

Lian yungang jinchang Special steel CO.,LTD

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s235rh s355j2h
Specification: 80*80*4-400*400*16
Detail: EFD high-frequency welder imported from Norway are used in these two lines to ensure reliable quality of welded joints. The co***ny has also imported full-automatic continuous temperature furnace for relaxation of internal str...


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