helical compre ion ring 螺旋压缩弹簧

seal ring compre ion ring 密封弹簧压圈

Top compre ion ring 齿型感知器

piston compre ion ring 活塞压缩环

Second compre ion ring 次进汽门

compre ion ring balance 压缩弹簧天平

conoid helical-coil compre ion ring 圆锥螺旋扭转弹簧

cylindroid helical-coil compre ion ring 圆柱螺旋压缩弹簧

ring-compre ion type grease gun 弹簧挤压注脂枪