GB 21252-2023 Chinese PDF GB/T 29456-2025 GB 44019-2024_Chinese: Safety requirements for

GB 44019-2024_Chinese: Safety requirements for tank cleaning-washing operation of chemical tankers (Chinese: 化学品船清洗舱安全作业要求)

GB/T 44990-2024_Chinese: Test method for interface bonding strength of coating by laser cladding repairing (Chinese: 激光熔覆修复层界面结合强度试验方法)

English versions: GB/T 45236-2025

GBZ45261-2025_Chinese: Course development guide for education about standardization - Fundamentals of conformity assessment (Chinese: 标准化教育课程建设指南 合格评定基础知识)

GB 21252-2023 Chinese PDF GB/T 29456-2025 GB 44019-2024_Chinese: Safety requirements forGB 21252 2023_Chinese: Norm of energy consumption for unit production of architecture and sanitary ceramics and alumina grinding ball (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 21252 2023