法兰系列:
优质碳钢:Q235A,Q235B,Q235C,20#,40#,45#,20Mn,25Mn,30Mn,50Mn,65Mn,70Mn,ASTM:A105,A694 F42, F46, F48, F50, F52, F56, F60, F65, F70……
不锈钢(奥氏):301,304,304L,321,316,316L,ASTM:F304,F321,F316……不锈钢(马氏):1Cr12,1Cr13,0Cr13,2Cr13,3Cr13,4Cr13……
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