半接头 meaning in Chinese

half joint

Fire fighting equipment . self - sealing symmetrical half couplings , sizes 40 and 65
消防设备.规格40和65的自密封对称半接头
Fire fighting equipment . self - sealing symmetrical half couplings , size 100 . type ar
消防设备. ar型规格100的自密封对称半接头
Fire fighting equipment . fixed , symmetricals , flanged half - couplings . characteristics
消防设备.对称凸缘固定半接头.特殊性能
Transport and handling of liquid chemical products and hydrocarbons . half symetric coupling guillemin system with rotating lock - nominal pressure 16
液态化学制品和带旋转锁固额定压力1的烃类对称半接头