GB 4407.2-2024 Chinese PDF GB 44022-2024 1-2025_Chinese: Plastics - Impact-resistant polystyrene(PS-I)

1-2025_Chinese: Plastics - Impact-resistant polystyrene(PS-I) moulding and extrusion materials - Part 1: Designation system and basis for specifications (Chinese: 塑料 抗冲击聚苯乙烯（PS-I）模塑和挤出材料 第1部分：命名系统和分类基础)

English versions: GB/T 45279

English versions: GB/T 45451

English versions: GB/T 34571-2024

2-2024_Chinese: Fire shutter assembly - Part 2: Motor for fire shutter assembly (Chinese: 防火卷帘 第2部分：防火卷帘用卷门机)

GB 4407.2-2024 Chinese PDF GB 44022-2024 1-2025_Chinese: Plastics - Impact-resistant polystyrene(PS-I)GB 4407. 2 2024_Chinese: Seed of economic crops Part 2: Oil species (Chinese: 2) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 4407. 2 2024