GB/T 11066.12-2024 Chinese PDF (GB/T11066.12-2024) GB/T 12540-2024 GB/T 12940-2023_Chinese: Technical specification for

GB/T 12940-2023_Chinese: Technical specification for silver-graphite electrical contacts (Chinese: 银石墨电触头技术条件)

English versions: GB/T 35267

GB 44016-2024_Chinese: Electro-magnetic emergency shut-off valve for gas (Chinese: 电磁式燃气紧急切断阀)

attachments and associated chain sprockets (Chinese: 传动用短节距精密滚子链、套筒链、附件和链轮)

English versions: GB/T 11047

GB/T 11066.12-2024 Chinese PDF (GB/T11066.12-2024) GB/T 12540-2024 GB/T 12940-2023_Chinese: Technical specification forGB T 11066. 12 2024_Chinese: Methods for chemical analysis of gold Part 12: Determination of silver, copper, iron, lead, bismuth, antimony, magnesium, nickel, manganese, palladium, chromium, platinum, rhodium, titanium, zinc, arsenic, tin, silicon, cobalt, calcium, potassium, lithi (Chinese: 12 ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 11066. 12 2024