短語詞組短語Swing check valve 旋啟式止回閥;擺動式止回閥;回轉(zhuǎn)止回閥;擺動閥瓣止回閥swing orifice valve 轉(zhuǎn)盤節(jié)流孔閥swing left valve housing 左轉(zhuǎn)閥殼bra swing check valve 黃銅橫式逆止閥Silence Swing Check Valve 旋啟式止回閥brass swing check valve 黃銅橫式逆止閥swing relief valve group 轉(zhuǎn)盤安全閥組件swing relief valve operation 轉(zhuǎn)盤安全閥的工作multiple swing check valve 多行程止回閥 返回 swing valve