spherical valve〔名词〕球阀,转动阀详细»
spherical valve〔名词〕球阀,球形阀详细»
spherical valve〔名词〕球阀详细»
spherical valve〔名词〕球形阀详细»
spherical valve〔名词〕球形阀详细»
spherical valve〔名词〕球阀,转动阀详细»
球形阀ball clack;globe body valve;globe valve;spherical valve详细»
球形阀ball check globe valve spherical valve详细»