Home / Standards / GB/T 39328-2020 GB/T 39328-2020 Active Additive manufacturing—Specification for material extrusion process of plastic materials 增材制造 塑料材料挤出成形工艺规范 Standard Type GBT ICS 25.030 CCS J30 Status 现行 Issue Date 2020-11-19 Implementation 2021-06-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A