GB/T 3939.1-2023 Chinese PDF (GB/T3939.1-2023) GB/T 17530.2-2023 GB/T 20042

GB/T 20042

English versions: GB/T 13516-2023

4-2024_Chinese: Ships and marine technology - Protective coatings and inspection method - Part 4: Automated measuring method for the total amount of water-soluble salts (Chinese: 船舶与海上技术 保护涂层和检查方法 第4部分：水溶性盐总含量的自动化测量方法)

2-2025_Chinese: Norm of water intake for service industry in the Yellow River basin - Part 2: Natatorium (Chinese: 黄河流域服务业用水定额 第2部分：游泳场馆)

English versions: GB/T 33296-2025

GB/T 3939.1-2023 Chinese PDF (GB/T3939.1-2023) GB/T 17530.2-2023 GB/T 20042GB T 3939. 1 2023_Chinese: Nomenclature and signs of main fishing gear material Part 1: Netting twine (Chinese: 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 3939. 1 2023