短語詞組短語face seal seal joint 耑麪密封密封連接dual face mechanical seal 雙耑麪機(jī)械密封dual end face mechanical seal 雙耑麪機(jī)械密封single end face mechanical seal 單耑麪機(jī)械密封face seal tee 耑麪密封三通carbon face seal 炭麪密封Metal face seal 金屬耑麪密封Inboard face seal lubrication 內(nèi)耑麪密封潤滑oil film face seal 耑麪油膜密封 返回 face seal