GB/T 21551.1-2024 Chinese PDF (GB /T21551.1-2024) GB/T 21200-2024 2-2025_Chinese: Plastics - Impact-resistant polystyrene

2-2025_Chinese: Plastics - Impact-resistant polystyrene (PS-I)moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties (Chinese: 塑料 抗冲击聚苯乙烯（PS-I）模塑和挤出材料 第2部分：试样制备和性能测定)

English versions: GB/T 20236-2025

English versions: GB/T 21270-2025

English versions: GB/T 14646-2025

GB/T 29292-2024_Chinese: Footwear - Guidelines for the management and control of key chemicals in footwear and footwear components (Chinese: 鞋类 鞋类和鞋类部件中重点化学物质管控指南)

GB/T 21551.1-2024 Chinese PDF (GB /T21551.1-2024) GB/T 21200-2024 2-2025_Chinese: Plastics - Impact-resistant polystyreneGB T 21551. 1 2024_Chinese: Antimicrobial and cleaning function of household and similar electrical appliances Part 1: General requirement (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 21551. 1 2024