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GB/T 40801-2021 钛、锆及其合金的焊接工艺评定试验 Welding procedure qualification tests for titanium, zirconi...2023-07-25

CB 20639-2018 舰船高强度铝合金焊接工艺评定要求 Technical Requirements of higer strength aluminium alloy weld...2023-07-07

HG/T 5103-2016 塑料冷焊接工艺评定 Bonding procedure qualification for plastics pipeline2023-05-02

SY/T 0452-2021 石油天然气金属管道焊接工艺评定2023-03-02

GB/T 40424-2021管与管板的焊接工艺评定试验Welding procedure qualification test for tubes to tube-plate joints...2022-10-24

GB/T 19869.1-2005钢、镍及镍合金的焊接工艺评定试验Welding procedure qualification test for steels,nickel and ...2022-06-13

CJ/T 32-2004液化石油气钢瓶焊接工艺评定Welding procedure qualification of liquified petroleum gas cylinders...2022-06-12

GB/T 19869.2-2012铝及铝合金的焊接工艺评定试验2022-06-10

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Welding procedure qualification test for laser-a...2022-06-08

CB/T 4363-2013船用钛及钛合金焊接工艺评定2022-06-05