Kurwanya Umuriro Grooved Flanged RAL3000 Resilient OS&Y NRS Irembo rya Valves nigikorwa cyintoki, kitazamuka cyumuti wurugi rwa wedge amarembo yagenewe gukoreshwa muri sisitemu yo gukingira umuriro kugirango ikorwe / ikore gusa. Umubiri wibyuma byoroheje byorohereza gukora byoroshye no kugabanya ibiciro byo kohereza.