GB/T 9253-2022 Chinese PDF (GB/T9253-2022) GB/T 18910.12-2024 GB/T 45678-2025_Chinese: General requirements for

GB/T 45678-2025_Chinese: General requirements for civil tethered unmanned aircraft system (Chinese: 民用系留无人机系统通用要求)

film and photographic studios(outdoor and indoor) (Chinese: 灯具 第2-17部分：特殊要求 舞台灯光、电视、电影及摄影场所(室内外)用灯具)

English versions: GB/T 45583-2025

GB 31335-2024_Chinese: Norm of the energy consumption per unit production of iron ore mining and dressing (Chinese: 铁矿开采和选矿单位产品能源消耗限额)

GB/T 9253-2022 Chinese PDF (GB/T9253-2022) GB/T 18910.12-2024 GB/T 45678-2025_Chinese: General requirements forGB T 9253 2022_Chinese: Petroleum and natural gas industries Threading, gauging and thread inspection of casing, tubing, and line pipe threads (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 9253 2022