GB/T 3394-2023 Chinese PDF (GB/T3394-2023) GB/T 35611-2024 1-2024_Chinese: Cast iron pipe flanges

1-2024_Chinese: Cast iron pipe flanges - Part 1: PN designated (Chinese: 铸铁管法兰 第1部分：PN系列)

5-2024_Chinese: Steel slag - Determination of manganese oxide content - The flame atomic absorption spectrometric method (Chinese: 钢渣 氧化锰含量的测定 火焰原子吸收光谱法)

GB/T 1361-2024_Chinese: General rules and regulations for analysis of iron ores (Chinese: 铁矿石分析方法总则及一般规定)

English versions: GB/T 14601-2025

GB/T 3394-2023 Chinese PDF (GB/T3394-2023) GB/T 35611-2024 1-2024_Chinese: Cast iron pipe flangesGB T 3394 2023_Chinese: Determination of trace carbon monoxide, carbon dioxide and acetylene of ethylene and propylene for industrial use Gas chromatographic method (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 3394 2023