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Vavu ya mpira ya UPVC imagwiritsa ntchito thupi lolimbana ndi dzimbiri lopangidwa kuchokera ku polyvinyl chloride yosapangidwa ndi pulasitiki ndi mpira wozungulira wokhala ndi dzenje lapakati. Tsinde limagwirizanitsa mpira ndi chogwirira, kulola kuzungulira kolondola. Mipando ndi mphete za O zimapanga chisindikizo chosadukiza, kupangitsa kuti valavu iyi ikhale yabwino yodalirika pa / off contr ...Werengani zambiri»
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Valavu ya mpira ya 3/4 ya PVC ndi valavu yophatikizika, yozungulira kotala yopangidwa kuti izitha kuyendetsa madzi mumipope, ulimi wothirira, ndi mafakitale. Cholinga chake chachikulu ndikupereka ntchito yabwino, yosatayikira. Ma valve awa amapereka maubwino angapo: amakana dzimbiri ndi mankhwala ...Werengani zambiri»
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zopangira, zopangidwa kuchokera ku Polypropylene Random Copolymer, zimakhala zofunikira pamakina opangira mapaipi. Amalumikiza mapaipi kuti atsimikizire kuyenda bwino kwamadzimadzi. Zida zawo zolimba zimakana kuvala, zomwe zimawapangitsa kukhala abwino kwa mapaipi amakono. Popereka kulimba komanso kudalirika, zopangira za PPR ha...Werengani zambiri»
