GB/T 18802.331-2024 Chinese PDF (GB/T18802.331-2024) GB/T 45133-2025 GB 25502-2024_Chinese: Minimum allowable values

GB 25502-2024_Chinese: Minimum allowable values of water efficiency and water efficiency grades for water closets (Chinese: 坐便器水效限定值及水效等级)

GB/T 1464-2024_Chinese: Test method for density of sandwich construction or cores (Chinese: 夹层结构或芯子密度试验方法)

English versions: GB/T 6147-2025

English versions: GB/T 6595-2025

English versions: GB/T 44960-2024

GB/T 18802.331-2024 Chinese PDF (GB/T18802.331-2024) GB/T 45133-2025 GB 25502-2024_Chinese: Minimum allowable valuesGB T 18802. 331 2024_Chinese: Components for low voltage surge protection Part 331: Performance requirements and test methods for metal oxide varistors (MOV) (Chinese: 331MOV) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 18802. 331 2024