GB/T 43313-2023 Chinese PDF (GB/T43313-2023) GB/T 43270-2023 English versions: GB/T 15651

English versions: GB/T 15651

GB/T 20032-2024_Chinese: Managing risk in projects - Application guidelines (Chinese: 项目风险管理 应用指南)

GB/T 28819-2023_Chinese: Aluminium alloy enclosures for gas-filled high-voltage switchgear (Chinese: 充气高压开关设备用铝合金外壳)

English versions: GB/T 14478-2025

17-2024_Chinese: Safety requirements for electrical equipment for measurement

GB/T 43313-2023 Chinese PDF (GB/T43313-2023) GB/T 43270-2023 English versions: GB/T 15651GB T 43313 2023_Chinese: Test method for surface quality and micropipe density of polished silicon carbide wafers Confocal and differential interferometry optics (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 43313 2023