GB/T 23538-2023 Chinese PDF (GB/T23538-2023) GB/T 29419-2023 YY/T 1946-2024_Chinese: Gene mutation in

YY/T 1946-2024_Chinese: Gene mutation in tumor tissue detection kit (high-throughput sequencing) (Chinese: 肿瘤组织基因突变检测试剂盒（高通量测序法))

1-2025_Chinese: Copper base brazing filler metals - Part 1: Solid brazing filler metals (Chinese: 铜基钎料 第1部分：实心钎料)

GB/T 22919

English versions: GB/T 45068

GB/T 21267-2024_Chinese: Petroleum and natural gas industries - Procedures for testing casing and tubing connections (Chinese: 石油天然气工业 套管及油管螺纹连接试验程序)

GB/T 23538-2023 Chinese PDF (GB/T23538-2023) GB/T 29419-2023 YY/T 1946-2024_Chinese: Gene mutation inGB T 23538 2023_Chinese: Conventional abrasive Determination method of ball milling toughness index (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 23538 2023