GB/T 1149.12-2023 Chinese PDF (GB/T1149.12-2023) GB/T 8588-2024 GB 21252-2023_Chinese: Norm of energy

GB 21252-2023_Chinese: Norm of energy consumption for unit production of architecture and sanitary ceramics and alumina grinding ball (Chinese: 建筑卫生陶瓷和耐磨氧化铝球单位产品能源消耗限额)

GB/T 42151

GB/T 20850-2025_Chinese: Safety of machinery - Guidelines for the application of machinery safety standards (Chinese: 机械安全 机械安全标准应用指南)

5-2023_Chinese: Specifications for the provision of personal protective equipment - Part 5: Building materials industry (Chinese: 个体防护装备配备规范 第5部分：建材)

GB/T 45595-2025_Chinese: Centrifugal refrigerant compressors (Chinese: 离心式制冷剂压缩机)

GB/T 1149.12-2023 Chinese PDF (GB/T1149.12-2023) GB/T 8588-2024 GB 21252-2023_Chinese: Norm of energyGB T 1149. 12 2023_Chinese: Internal combustion engines Piston rings Part 12: Half keystone rings made of steel (Chinese: 12) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 1149. 12 2023