喷油器组垫片
fuel injector group spacer
数据资料组组组长
Officer-in-Charge Data Section
Sierpinski垫片天线
Sierpinski gasket antenna
W型缠绕垫片
W type spiral wound gasket
安全阀调整垫片
relief valve adjustment shim
波齿复合垫片
corrugated complex gasket
Corrugated serrate composite gasket
corrugate metal sheet composite gasket