GB/T 25936.1-2024 Chinese PDF (GB/T25936.1-2024) 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)

17-2023_Chinese: Internal combustion engines - Piston rings - Part 17: Coil-spring-loaded oil control rings made of steel (Chinese: 内燃机 活塞环 第17部分：钢质螺旋撑簧油环)

coal to synthetic natural gas and coal to liquids (Chinese: 煤制烯烃、煤制天然气和煤制油单位产品能源消耗限额)

English versions: GB/T 13631-2023

GB/T 25936.1-2024 Chinese PDF (GB/T25936.1-2024) GB/T 30785-2025 2-2025_Chinese: Plastics - Poly(phenylene ether)GB T 25936. 1 2024_Chinese: Rubber and plastics size reduction machines Part 1: Safety requirements for blade granulators (Chinese: 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 25936. 1 2024