12Cr2MoWVB(钢研102)钢管进行气焊对口焊接,其焊口焊后热处理为()℃正火加760~780℃回火
12Cr2MoWVB(钢研102)钢管进行气焊对口焊接,其焊口焊后热处理为()℃正火加760~780℃回火
A.800~830
B.900~930
C.1000~1030
D.1100~1130
正确答案:C
12Cr2MoWVB(钢研102)钢管进行气焊对口焊接,其焊口焊后热处理为()℃正火加760~780℃回火
A.800~830
B.900~930
C.1000~1030
D.1100~1130
正确答案:C
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