圆柱形水位表垫圈 cylindrical water gauge packing

堆垫表层 cumulic epipedon ; Plaggen epipedon

仪表衬垫 instrumentation insert

垫熟表层 plaggen epipedon

缸盖衬垫表面 cylinder head gasket surface

表面焊垫 Land

缸垫表面 head gasket surface

衬垫密封表面 gasket sealing surface

密封垫表面 gasket surface

滤清器底座衬垫表面 filter base gasket surface