GB/T 39932- 2021.Footwear manufacturing machines- Cutting and punching machines-Safety requirements....
GB国家标准
GB国家标准
GB国家标准
GB/T 39932-2021 制鞋机械 裁断机与冲孔机 安全要求
GB/T 39932-2021.Footwear manufacturing machines-Cutting and punching machines-Safety requirements. 1...