Halayen samfur
1. Tsarin tsari, m zane, mai kyau rigidity na bawul, m nassi da kuma kananan kwarara juriya coefficient.
2. The sealing surface an yi shi da bakin karfe da siminti carbide tare da dogon sabis rayuwa.
3. M graphite shiryawa farantin, abin dogara sealing, sauki da kuma m aiki.
4. Hanyoyin tuƙi sun haɗa da manual, lantarki, pneumatic, jigilar kaya da siffofin tsari; na roba wedge guda bawul, m wedge guda bawul farantin da kuma biyu kofa irin.
5. Ana amfani da shi sosai a cikin samfuran mai, ruwa da bututun tururi na man fetur, masana'antar sinadarai da masana'antar wutar lantarki azaman na'urorin farawa da rufewa don haɗawa ko yanke matsakaici a cikin bututun.