GB/T 13631-2023 Chinese PDF (GB/T13631-2023) GB/T 45619-2025 GB/T 45472-2025_Chinese: Prefabricated insulation pipes

GB/T 45472-2025_Chinese: Prefabricated insulation pipes for overhead and utility tunnel (Chinese: 架空和综合管廊用预制保温管道)

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)

GB/T 44889-2024_Chinese: Guidance for statistics for operating costs of government offices (Chinese: 机关运行成本统计指南)

GB/T 14157-2023_Chinese: Terminology of hydrogeology (Chinese: 水文地质术语)

GB/T 13631-2023 Chinese PDF (GB/T13631-2023) GB/T 45619-2025 GB/T 45472-2025_Chinese: Prefabricated insulation pipesGB 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