GB/Z 27021.13-2025 Chinese PDF (GB /Z27021.13-2025) GB/T 30785-2025 2-2025_Chinese: Plastics - Poly(phenylene ether)

2-2025_Chinese: Plastics - Poly(phenylene ether) (PPE) moulding and extrusion materials - Part 2: Preparation of test specimen and determination of properties (Chinese: 塑料 聚苯醚（PPE）模塑和挤出材料 第2部分：试样制备和性能测定)

GB/T 45354

GB/T 45384-2025_Chinese: Safety and control devices for gas burners and gas-burning appliances - Particular requirements - Pneumatic gas/air ratio pressure regulator (Chinese: 燃气燃烧器和燃烧器具用安全和控制装置 特殊要求 气动式燃气与空气比例调节装置)

GB/T 26250-2025_Chinese: Electronic gas - Arsine (Chinese: 电子气体 砷化氢)

1-2024_Chinese: Steel for the reinforcement of concrete - Part 1: Hot rolled plain bars (Chinese: 钢筋混凝土用钢 第1部分：热轧光圆钢筋)

GB/Z 27021.13-2025 Chinese PDF (GB /Z27021.13-2025) GB/T 30785-2025 2-2025_Chinese: Plastics - Poly(phenylene ether)GBZ27021. 13 2025_Chinese: Conformity assessment Requirements for bodies providing audit and certification of management systems Part 13: Competence requirements for auditing and certification of compliance management systems (Chinese: 13) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GBZ27021. 13 2025