GB/T 34360-2017冲压件材料消耗工艺定额编制要求国家标准
英文:Compiling requirement of technological norm for stamping part material consumption GB/T 34360-2017介绍: 国家标准《冲压件材料消耗工艺定...
英文:Compiling requirement of technological norm for stamping part material consumption GB/T 34360-2017介绍: 国家标准《冲压件材料消耗工艺定...