GB/T 21413.5-2023 Chinese PDF (GB/T21413.5-2023) GB/T 22249-2024 English versions: GB/T 26990-2023

English versions: GB/T 26990-2023

English versions: GB/T 45542-2025

GB/T 45309-2025_Chinese: Guidelines for classification and coding of enterprise procurement supplies (Chinese: 企业采购物资分类编码指南)

tubing and drill pipe (Chinese: 石油天然气工业 新套管、油管和钻杆现场检验)

GB/T 22249-2024_Chinese: Determination of lycopene in health foods (Chinese: 保健食品中番茄红素的测定)

GB/T 21413.5-2023 Chinese PDF (GB/T21413.5-2023) GB/T 22249-2024 English versions: GB/T 26990-2023GB T 21413. 5 2023_Chinese: Railway applications Electric equipment for rolling stock Part 5: Electrotechnical components Rules for HV fuses (Chinese: 5 ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 21413. 5 2023