GB/T 12940-2023 Chinese PDF (GB/T12940-2023) GB/T 9981-2025 English versions: GB/T 45608-2025

English versions: GB/T 45608-2025

English versions: GB/T 45004-2024

Canonical Encoding Rules(CER) and Distinguished Encoding Rules(DER) (Chinese: 信息技术 ASN

GB 30254-2024_Chinese: Minimum allowable values of energy efficiency and energy efficiency grades for cage three-phase high voltage induction motor (Chinese: 高压三相笼型异步电动机能效限定值及能效等级)

GB 20052-2024_Chinese: Minimum allowable values of energy efficiency and the energy efficiency grades for power transformers (Chinese: 电力变压器能效限定值及能效等级)

GB/T 12940-2023 Chinese PDF (GB/T12940-2023) GB/T 9981-2025 English versions: GB/T 45608-2025GB T 12940 2023_Chinese: Technical specification for silver graphite electrical contacts (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 12940 2023