GB/T 20656-2023 Chinese PDF (GB/T20656-2023) GB/T 45383-2025 GB 31335-2024_Chinese: Norm of the

GB 31335-2024_Chinese: Norm of the energy consumption per unit production of iron ore mining and dressing (Chinese: 铁矿开采和选矿单位产品能源消耗限额)

GB/T 45599-2025_Chinese: Liquid silicone rubber - Self-lubricating type for connectors (Chinese: 液体硅橡胶 连接器用自润滑型)

GB/T 45166-2024_Chinese: Non-destructive testing - Infrared thermographic testing - General principles (Chinese: 无损检测 红外热成像检测 总则)

GB/T 14048

GB/T 45624-2025_Chinese: Requirements for sales quality control of fruit and vegetables products (Chinese: 果蔬产品销售质量控制要求)

GB/T 20656-2023 Chinese PDF (GB/T20656-2023) GB/T 45383-2025 GB 31335-2024_Chinese: Norm of theGB T 20656 2023_Chinese: Petroleum and natural gas industries Field inspection of new casing, tubing and drill pipe (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20656 2023