短語(yǔ)詞組短語(yǔ)seal catch ring 密封擋環(huán)Seal Shim Ring 閥蓋環(huán)C seal -ring C形密封圈seal retaining ring 密封固定環(huán)seal case ring 密封箱圈seal protector ring 密封防護(hù)墊環(huán)seal wiper ring 封閉刮油環(huán)INTERNAL SEAL -RING 內(nèi)部密封環(huán)seal packing ring o 形密封圈 返回 seal ring