GB/T 15558.5-2023 Chinese PDF (GB/T15558.5-2023) GB/T 16702.4-2025 English versions: GB/T 21307-2025

English versions: GB/T 21307-2025

generators and transformers (Chinese: 量度继电器和保护装置 第187-1部分：差动保护的功能要求 电动机、发电机和变压器比率制动差动保护和差动速断保护)

GB 19272-2024_Chinese: Safety for outdoor body-building equipment - General requirements (Chinese: 室外健身器材的安全 通用要求)

their salts and analogues - L-Valine (Chinese: 饲料添加剂 第1部分：氨基酸、氨基酸盐及其类似物 L-缬氨酸)

GB/T 45240-2025_Chinese: General requirements for device-independent quantum random number generators (Chinese: 器件无关量子随机数发生器通用要求)

GB/T 15558.5-2023 Chinese PDF (GB/T15558.5-2023) GB/T 16702.4-2025 English versions: GB/T 21307-2025GB T 15558. 5 2023_Chinese: Buried polyethylene(PE) piping systems for the supply of gaseous fuels Part 5: Fitness for purpose of the system (Chinese: PE 5) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 15558. 5 2023