PVC，。，。。。。。，。。PVC。。，，，。PVwasuction hose priceong>suction hose vs discharge hoseter pumpcorrugated suction hose pvc pipeC，corrugated vacuum hose，，，、 pvc suction hose pipe 4 inch .，PVC。PVC，，4PVC、4PVC，、，，。。，wsucsuction hose pricecorrugated vacuum hosetion hose vs discharge hoseatecorrugated suction hoser pump pvc pipe，。PVC，、PVC。。，PVC（），，，PVC，，4，。，