GB/T 1149.11-2023内燃机活塞环第11部分:楔形铸铁环国家标准
英文:Internal combustion engines—Piston rings—Part 11: Half keystone rings made of cast iron GB/T 1149.11-2023介绍: 国家标准《内燃机...
英文:Internal combustion engines—Piston rings—Part 11: Half keystone rings made of cast iron GB/T 1149.11-2023介绍: 国家标准《内燃机...