卫生级管帽Sanitarynut

卫生级RJT活接RJTUnion

卫生级SMS活接SMSUnion

IDF活接IDFUnion

卫生级DIN活接DINUnion

卫生级管件SanitaryUnion

卫生级管件Union

卫生级管件sanitaryferrule

卫生级3A活接3Aunion

自动或手动碟阀Sanitaryvalve