GB/T 4706.87-2024 Chinese PDF (GB/T4706.87-2024) GB/T 20183.2-2024 11-2023_Chinese: Internal combustion engines -

11-2023_Chinese: Internal combustion engines - Piston rings - Part 11: Half keystone rings made of cast iron (Chinese: 内燃机 活塞环 第11部分：楔形铸铁环)

GB/T 18737

English versions: GB/T 45479-2025

English versions: GB/T 45574-2025

GB/T 12723-2024_Chinese: General principles for establishing allowance of energy consumption per unit throughput (Chinese: 单位产品能源消耗限额编制通则)

GB/T 4706.87-2024 Chinese PDF (GB/T4706.87-2024) GB/T 20183.2-2024 11-2023_Chinese: Internal combustion engines -GB T 4706. 87 2024_Chinese: Safety of household and similar electrical appliances Part 87: Particular requirements for commercial spray extraction machines (Chinese: 87) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 4706. 87 2024