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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

GB/T 22652-2019阀门密封面堆焊工艺评定2022-06-15

CB/T 4363-2013船用钛及钛合金焊接工艺评定2022-06-05

GB/T 40740-2021堆焊工艺评定试验Welding procedures qualification for overlay welding2022-03-14

电站弯管的工艺评定2020-10-26