... committed to the research, development and design of extrusion die and complete equipment of plastic machinery. So we ... plastic products within 10 m (including 10 m), extrusion die in the range of ply δ= 0.005- ... layer, double-layer and multi-layer of plastic materials like PVC, PS, OPP, PO, PP, PE, EVA, PC, ... both external and internal deckling to adjust the die width that can eliminate the thick inside ...