GB/T 33645-2017钢、镍及镍合金的激光-电弧复合焊接工艺评定试验国家标准
英文:Welding procedure qualification test for laser-arc hybrid welding of steels, nickel and nickel alloys GB/T 33645-2017...
英文:Welding procedure qualification test for laser-arc hybrid welding of steels, nickel and nickel alloys GB/T 33645-2017...