三层共挤复合宽幅吹膜机组
Three-layer coextrusion composite wide-width film blowing unit
三层共挤农膜
three-layer co-extruded film
PVC软硬共挤废料
hard and soft co-extruded PVC profiles
软硬共挤
Soft and Hard Co-extrusion
气辅共挤成型
Gas-assisted Co-extrusion
共挤复合结构
core-crust composing structure
共挤多层板
co-extruded multilayer sheet
钢塑共挤模具
Steel-plastic coextrusion die