GB 19083-2023 Chinese PDF GB/T 45242-2025 English versions: GB/T 22211-2025

English versions: GB/T 22211-2025

English versions: GBZ45115-2024

GB/T 45020-2024_Chinese: Methods for chemical analysis of niobium hafnium alloys - Determination of trace impurity elements content - Inductively coupled plasma mass spectrometry (Chinese: 铌铪合金化学分析方法 痕量杂质元素的测定 电感耦合等离子体质谱法)

GB/T 25367-2024_Chinese: Electronic control common rail system for diesel engines - Fuel injector (Chinese: 柴油机电控共轨系统 喷油器总成)

English versions: GB/T 5612-2025

GB 19083-2023 Chinese PDF GB/T 45242-2025 English versions: GB/T 22211-2025GB 19083 2023_Chinese: Protective face mask for medical use (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 19083 2023