GB/T 45159.2-2024 Chinese PDF (GB /T45159.2-2024) GB/T 44933-2024 GB/T 45127-2025_Chinese: Plastics - Evaluation

GB/T 45127-2025_Chinese: Plastics - Evaluation of the action of microorganisms (Chinese: 塑料 微生物作用的评价)

GB/T 14600-2025_Chinese: Electronic gas - Nitrous oxide (Chinese: 电子气体 一氧化二氮)

GB/T 33523

1-2024_Chinese: Mechanical vibration - Measurement and evaluation of machine vibration - Part 1: General guidelines (Chinese: 机械振动 机器振动的测量和评价 第1部分：总则)

1-2025_Chinese: Uncut finished spectacle lenses - Part 1: Single-vision and multifocal (Chinese: 眼镜镜片 第1部分：单焦和多焦)

GB/T 45159.2-2024 Chinese PDF (GB /T45159.2-2024) GB/T 44933-2024 GB/T 45127-2025_Chinese: Plastics - EvaluationGB T 45159. 2 2024_Chinese: Mechanical vibration and shock Characterization of the dynamic mechanical properties of visco elastic materials Part 2: REsonance method (Chinese: 2) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45159. 2 2024