短語詞組短語Welded metal -bellows mechanical seal [機(jī)]焊接金屬波紋管機(jī)械密封welded metal bellows mechanical seal 焊接金屬波紋管機(jī)械密封formed metal bellows mechanical seal 壓力成型金屬波紋管機(jī)械密封;壓力成型金屬波紋管機(jī)械密封件 返回 metal bellows mechanical seal