GB/T 29021-2023 Chinese PDF (GB/T29021-2023) GB/T 44909-2024 English versions: GB/T 21037-2024

English versions: GB/T 21037-2024

English versions: GB/T 45112-2024

12-2024_Chinese: Technical requirements and test methods for sports field - Part 12: Natural climbing venue (Chinese: 体育场地使用要求及检验方法 第12部分：自然攀岩场地)

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/T 31771-2024_Chinese: Housekeeping service - Specification for quality of maternal and infant care services (Chinese: 家政服务 母婴护理服务质量规范)

GB/T 29021-2023 Chinese PDF (GB/T29021-2023) GB/T 44909-2024 English versions: GB/T 21037-2024GB T 29021 2023_Chinese: Petroleum drilling and production equipment Beam pumping unit (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 29021 2023