同义词
1)blank flange;blind flange,法兰盖2)Temporary blind flange,临时法兰盖3)steel pipe blank flange with male and female face,凹凸面钢制管法兰盖4)steel pipe blank flange with ring-joint face,环连接面钢制管法兰盖5)steel pipe blank flange with flat face,平面钢制管法兰盖6)steel pipe blank flange with raised face,凸面钢制管法兰盖
