GB/T 29712-2023 Chinese PDF (GB/T29712-2023) GB/T 25105.3-2025 GB 30253-2024_Chinese: Minimum allowable values

GB 30253-2024_Chinese: Minimum allowable values of energy efficiency and energy efficiency grades for permanent magnet synchronous motors (Chinese: 永磁同步电动机能效限定值及能效等级)

GB 21456-2024_Chinese: Minimum allowable values of the energy efficiency and energy efficiency grades for household and similar kitchen appliances (Chinese: 家用和类似用途厨房电器能效限定值及能效等级)

monoculars and spotting scopes - Part 2: High performance instruments (Chinese: 光学和光子学 双筒望远镜、单筒望远镜和观测镜规范 第2部分：高性能仪器)

GB/T 45233-2025_Chinese: Guidelines for comprehensive safety risk assessment of chemical industry park (Chinese: 化工园区安全风险评估导则)

GB/T 29820

GB/T 29712-2023 Chinese PDF (GB/T29712-2023) GB/T 25105.3-2025 GB 30253-2024_Chinese: Minimum allowable valuesGB T 29712 2023_Chinese: Non destructive testing of welds Ultrasonic testing Acceptance levels (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 29712 2023