GB/T 13631-2023 Chinese PDF (GB/T13631-2023) GB/T 45619-2025 English versions: GB/T 12357

English versions: GB/T 12357

GB/T 44797-2025_Chinese: Microwave hybrid integrated circuits - Synthesized frequency sources (Chinese: 微波混合集成电路 合成频率源)

GB/T 1148-2024_Chinese: Internal combustion engines - Aluminum pistons (Chinese: 内燃机 铝活塞)

GB/T 44872-2024_Chinese: General technical requirements for appearance of textile products after cleansing (Chinese: 纺织产品洗后外观通用技术要求)

selection and erection (Chinese: 爆炸性环境 第15部分：电气装置设计、选型、安装规范)

GB/T 13631-2023 Chinese PDF (GB/T13631-2023) GB/T 45619-2025 English versions: GB/T 12357GB T 13631 2023_Chinese: Criteria for the design of the supplementary control room of nuclear power plant (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 13631 2023