Full Automatic Pvc Gravimetric Dosing System Application Full Automatic PVC Gravimetric Dosing System is designed for automatic weighing and mixing PVC blends according to your formulation preset in computer, then conveying PVC blends into feeding hopper of extruder. Our company with rich experience on Full Automatic PVC Gravimetric Dosing System for PVC pipes, PVC profiles and other PVC products factory. We not only sell the system in China, but also export it to many countries such asIndia, Turkey, Iran and Russia etc..