PVC dumama waya, ake magana a kai a matsayin dumama waya, kuma aka sani da PVC dumama waya, da ciki amfani da nickel-chromium gami, Constantan gami, jan-nickel gami a matsayin dumama shugaba, da yin amfani da PVC rufi Layer, kauri naúrar launi na zaɓi na zaɓi. , Ƙimar samfurin samfurin 105 ° C, dogon lokaci 80 ° C a ƙasa da rayuwar sabis har zuwa shekaru 8-12, ƙarfin samfurin da lankwasawa yana da kyau, Yawancin lokaci yana iya jure wa ƙarfin ja. kasa da 35KG.