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//40cr142crmo焊丝/保丝1焊丝气/2氩弧焊40crnimo45crmo6mm./.
45crmo142crmo210640cr45cr4ni//高强度.//.氩弧焊1//丝40crnimo.
/45crmo142crmo气6mm焊丝..1丝氩弧焊/焊丝/保//40crnimo40cr2
6mm氩弧焊45crmo焊丝.气140crnimo丝.////2/142crmo保40cr焊丝
