wall ring liner 管壁内衬

discharge ring liner 排放环衬

Liner ring 套筒环 ; 衬环

Gluey liner ring 胶质衬环

head ring for cylinder liner 缸套顶圈

protective ring for cylinder liner 缸套护圈

liner seal ring 衬套筒封环

cylinder liner packing ring 汽缸压衬圈 ; 缸衬胀圈

The upper O-ring cylinder liner 缸套上部O型圈