GB/T 33290.31-2024 Chinese PDF (GB/T33290.31-2024) GB/T 32590.1-2024 GB/T 30163-2023_Chinese: Specifications of top

GB/T 30163-2023_Chinese: Specifications of top combustion stove with high blast temperature for blast furnace (Chinese: 高炉用高风温顶燃式热风炉节能技术规范)

English versions: GB/T 18156-2023

16-2024_Chinese: Explosive atmospheres - Part 16: Specification of electrical installations inspection and maintenance (Chinese: 爆炸性环境 第16部分：电气装置检查与维护规范)

GB/T 45356-2025_Chinese: Polypropylene(PP) piping systems for non-pressure buried drainage and sewerage (Chinese: 无压埋地排污、排水用聚丙烯（PP）管道系统)

English versions: GB/T 45220-2025

GB/T 33290.31-2024 Chinese PDF (GB/T33290.31-2024) GB/T 32590.1-2024 GB/T 30163-2023_Chinese: Specifications of topGB T 33290. 31 2024_Chinese: Specification for inspecting exit cultural relics Part 31: Jewelry (Chinese: 31) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 33290. 31 2024