GB/T 45412.1-2025 Chinese PDF (GB /T45412.1-2025) GB/T 45140-2025 GB/T 45126-2025_Chinese: Determination of carbon

GB/T 45126-2025_Chinese: Determination of carbon dioxide content of steel slag during carbonation fixation (Chinese: 钢渣碳酸化固定二氧化碳含量的测定方法)

GB/T 13748

English versions: GB/T 45059-2024

GB/T 33492-2024_Chinese: Management specification of second-hand goods exchange market (Chinese: 二手货交易市场经营管理规范)

GB/T 45412.1-2025 Chinese PDF (GB /T45412.1-2025) GB/T 45140-2025 GB/T 45126-2025_Chinese: Determination of carbonGB T 45412. 1 2025_Chinese: Optics and photonics Specifications for binoculars, monoculars and spotting scopes Part 1: General purpose instruments (Chinese: 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45412. 1 2025