GB/T 24021-2024 Chinese PDF (GB/T24021-2024) GB/T 29479.1-2025 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)

6-2024_Chinese: Mechanical vibration - Evaluation of machine vibration by measurements on non-rotating parts - Part 6: Reciprocating machines with power ratings above 100 kW (Chinese: 机械振动 在非旋转部件上测量评价机器的振动 第6部分：功率大于100kW的往复式机器)

GB/T 10463-2024_Chinese: Maize flour (Chinese: 玉米粉)

GB/T 39077-2024_Chinese: Test methods for detecting detrimental phase in austenitic-ferritic(duplex) stainless steels (Chinese: 奥氏体-铁素体（双相）不锈钢中有害相的检测方法)

English versions: GB/T 45590-2025

GB/T 24021-2024 Chinese PDF (GB/T24021-2024) GB/T 29479.1-2025 2-2025_Chinese: Plastics - Impact-resistant polystyreneGB T 24021 2024_Chinese: Environmental management Environmental labels and declarations Self declared environmental claims (Type II environmental labelling) (Chinese: II) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 24021 2024