进口德国蒂森焊条,焊丝 Thyssen不锈钢、镍基合金焊材(Stainless Steels and Nickel Alloys Thyssen气体保护焊实心、药芯焊丝 高强钢实心焊丝(High Tensile Steels GTAW rods/wires and GMAW wires 抗蠕变钢实心、药芯焊丝(Creep Resistant Low-Alloyed Steels GTAW rods/wires, GMAW,FCAW and MCAW wires 耐大气腐蚀钢实心焊丝(Weatherproof Steels GMAW wires