Al - alloys have special requirements on MIG welding due to their unique physical and chemical properties.铝合金因其独特的物理、化学性能对MIG焊有特殊的要求.The study demonstrates that the laser - MIG hybrid welding is an effective welding proc...
...a company which made the Mig-21 jet fighter under licence from Russia.获俄罗斯授权制造米格–21喷气式战斗机的公司Al - alloys have special requirements on MIG welding due to their unique physical and chemical properties.铝合金因其独特的物理、化学性能对MIG...