GB/T 18690.4-2023 Chinese PDF (GB/T18690.4-2023) GB/T 45427-2025 English versions: GB 45673-2025

English versions: GB 45673-2025

GB/T 26436-2025_Chinese: Diagnostic techniques for avian leukosis (Chinese: 禽白血病诊断技术)

GB/T 45602-2025_Chinese: Ships and marine technology - Adjustable roller-type chain stoppers (Chinese: 船舶与海洋技术 可调式滚轮闸刀掣链器)

GB 29436-2023_Chinese: Norm of energy consumption per unit production of methanol

GB/T 45653-2025_Chinese: Specification for after-sales service of new energy vehicle (Chinese: 新能源汽车售后服务规范)

GB/T 18690.4-2023 Chinese PDF (GB/T18690.4-2023) GB/T 45427-2025 English versions: GB 45673-2025GB T 18690. 4 2023_Chinese: Agricultural irrigation equipment Filters for micro irrigation Part 4: Granulated media filters (Chinese: 4) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 18690. 4 2023