Home / Standards / GB/T 37679-2019 GB/T 37679-2019 Active Sheet metal parts fabricated by fine blanking combined with extrusion process—Technological specification 金属板料精冲挤压复合成形件 工艺规范 Standard Type GBT ICS 25.020 CCS J32 Status 现行 Issue Date 2019-06-04 Implementation 2020-01-01 Responsible Dept 国家标准委 Drafting Unit N/A