GB/T 24630.2-2024 Chinese PDF (GB/T24630.2-2024) GB/T 21510-2024 English versions: GB/T 25105

English versions: GB/T 25105

20-2025_Chinese: Methods for chemical analysis of tungsten concentrates - Part 20: Determination of mercury content - Solid sampling and direct mercury analysis method (Chinese: 钨精矿化学分析方法 第20部分：汞含量的测定 固体进样直接测定法)

GB/T 15314-2024_Chinese: Specifications for precise engineering survey (Chinese: 精密工程测量规范)

English versions: GB 32032-2024

GB/T 1464-2024_Chinese: Test method for density of sandwich construction or cores (Chinese: 夹层结构或芯子密度试验方法)

GB/T 24630.2-2024 Chinese PDF (GB/T24630.2-2024) GB/T 21510-2024 English versions: GB/T 25105GB T 24630. 2 2024_Chinese: Geometrical product specifications(GPS) Flatness Part 2: Specification operators (Chinese: GPS 2) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 24630. 2 2024