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Chinese Standard: GB/T 1149.7-2010

Internal combustion engines—Piston rings—Part 7:Rectangular rings made of cast iron

IDT  ISO 6622-1:2003

全国内燃机标准化技术委员会(SAC/TC 177)

GB/T 1149的本部分规定了活塞环型号为R、B、BA和M的矩形铸铁制活塞环(以下简称矩形铸铁环)的基本尺寸特征。
本部分适用于气缸直径不大于200 mm的往复式内燃机用的矩形铸铁环,在类似条件下工作的压缩机用的矩形铸铁环也可参照使用。

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