GB/T 2820.7-2024 Chinese PDF (GB/T2820.7-2024) GB/T 31901-2024 42-2025_Chinese: National food safety standard

42-2025_Chinese: National food safety standard - Determination of salt index (Chinese: 食品安全国家标准 食用盐指标的测定)

GB/T 45108-2024_Chinese: Recycling materials for platinum group metals (Chinese: 再生铂族金属原料)

GB/T 45506-2025_Chinese: Residual resistance ratio measurement - Residual resistance ratio of cavity-grade Nb superconductors (Chinese: 剩余电阻比测量 谐振腔级铌超导体剩余电阻比测量)

GB 43854-2024_Chinese: Safety technical specification of lithium-ion battery for electric bicycle (Chinese: 电动自行车用锂离子蓄电池安全技术规范)

GB/T 2820.7-2024 Chinese PDF (GB/T2820.7-2024) GB/T 31901-2024 42-2025_Chinese: National food safety standardGB T 2820. 7 2024_Chinese: Reciprocating internal combustion engine driven alternating current generating sets Part 7: Technical declarations for specification and design (Chinese: 7) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 2820. 7 2024