With special coat-hanger channel design, Upper die lip with 90 degree restrictor bar adjusts the thickness, the lower die lip is integration . Can be maximally reduce heat sensitive streamâ??s ablation in the extrusion process. 1.Adopts special design flow equipped with 2- layers Feedblock can produce better double layer sheet , and make sure more smooth surface. 2.Normal model is 1350 mm, the width is unchangeable. Customization for special specification and requirement is available.