GB/T 20236-2025 Chinese PDF (GB /T20236-2025) GB/T 20882.1-2025 GB/T 20424-2025_Chinese: The specification for

GB/T 20424-2025_Chinese: The specification for limit on harmful element content of the heavy nonferrous metal concentrates products (Chinese: 重有色金属精矿产品中有害元素的限量规范)

GB/T 13523-2024_Chinese: Copper red glaze porcelain (Chinese: 铜红釉瓷器)

2-2025_Chinese: Motor vehicle coolant - Part 2: Electric vehicle coolant (Chinese: 机动车冷却液 第2部分：电动汽车冷却液)

GB/T 18414-2025_Chinese: Textiles - Determination of chlorinated phenols and ortho-phenylphenol (Chinese: 纺织品 含氯苯酚邻苯基苯酚的测定)

GB/T 20236-2025 Chinese PDF (GB /T20236-2025) GB/T 20882.1-2025 GB/T 20424-2025_Chinese: The specification forGB T 20236 2025_Chinese: Accelerated outdoor weathering test methods for nonmetallic materials using concentrated natural sunlight (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20236 2025