Window Frame UPVC Profile Plastic Extrusion Die Maker on China WDMAWindow Frame UPVC Window Profile Plastic Extrusion Die Maker Characters Our Advantages Of PVC Plastic Extrusion Mould 1. Using the overall flowing path core support structure 2. Using the removable locating pin devices; 3. The channel design has avoided the dead area and retention 4. The optimized design of the flowing channel gives it a stronger impact resistance . 5. The inside and outside surface of the profile is smooth and without scratches 6.