GB/T 30663-2024 Chinese PDF (GB/T30663-2024) GB/T 19960-2024 GB/T 45020-2024_Chinese: Methods for chemical

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 14646-2025_Chinese: Retreaded tyres for passenger cars (Chinese: 轿车翻新轮胎)

English versions: GB/T 45583-2025

GB/T 45368-2025_Chinese: Leather - Specification for packaging of wet blue leather (Chinese: 皮革 蓝湿革包装规范)

GB/T 2812-2024_Chinese: Head protection - General test methods (Chinese: 头部防护 通用测试方法)

GB/T 30663-2024 Chinese PDF (GB/T30663-2024) GB/T 19960-2024 GB/T 45020-2024_Chinese: Methods for chemicalGB T 30663 2024_Chinese: Specification for service of personnel assessment (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 30663 2024