品名:E309LT1-1不銹鋼藥芯焊絲**:AWS? A5.22??SFA-5.22? E309LT1-1?**:ABS、DNV、GL、LR、BV、NK、RS、KF、CCS、CWB用途:不銹復合鋼復層的封底焊。復合鋼焊接及諸如不銹鋼與碳鋼或低合金鋼的異種鋼焊接。氣體:**CO2或Ar 20-25%CO2