GB/T 29043-2023 Chinese PDF (GB/T29043-2023) GB/T 23327-2025 GB/T 20818

GB/T 20818

GB/T 44922-2024_Chinese: Additive manufacturing - Qualification principles - Qualifying machine operators of laser metal powder bed fusion machines and equipment used in aerospace applications (Chinese: 增材制造 鉴定原则 航空航天用金属激光粉末床熔融设备操作人员资格鉴定)

English versions: GB/T 45070-2024

English versions: GB/T 45636-2025

22-2024_Chinese: Liquid crystal display devices - Part 2-2: Matrix colour LCD modules - Blank detail specification (Chinese: 液晶显示器件 第2-2部分：彩色矩阵液晶显示模块 空白详细规范)

GB/T 29043-2023 Chinese PDF (GB/T29043-2023) GB/T 23327-2025 GB/T 20818GB T 29043 2023_Chinese: Test method for thermal insulating performance of curtain walls (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 29043 2023