gb t 4171 q500nh weather proof steel plate

Translate this pageU-CarT-Value ASTM A709 GR 50W bridge structural steel plate - Mild A 709 Gr.50W steel plate steel plate,A 709 Gr.50W steel ASTM A709 GR 50W bridge structural steel plateA 709 Gr.50W Weathering Steel Description. ASTM A709 Grade 50W equal grade are EN10155 :S355K2G1W,NFA 35-502E 36 WB 4 .A709 Grade 50W is the specification used for steel plate used in the manufacture of bridges.

China 42CrMo4 41crmo4 4142 4140 Alloy Seamless Steel

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