GB/T 2878.1-2025 Chinese PDF (GB /T2878.1-2025) GB 39800.9-2024 GB 45320-2025_Chinese: Safety and general

GB 45320-2025_Chinese: Safety and general technical specifications for construction waterproof sheets (Chinese: 建筑防水卷材安全和通用技术规范)

English versions: GB 17167-2025

English versions: GB 31648-2025

GB/T 2941-2025_Chinese: Rubber - General procedures for preparing and conditioning test pieces for physical test methods (Chinese: 橡胶 物理试验方法试样制备和调节通用程序)

GB/T 41869

GB/T 2878.1-2025 Chinese PDF (GB /T2878.1-2025) GB 39800.9-2024 GB 45320-2025_Chinese: Safety and generalGB T 2878. 1 2025_Chinese: Connections for hydraulic fluid power Ports with truncated housing and stud ends with metric threads Part 1: Ports with truncated housing (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 2878. 1 2025