... has 60 lines, 76 lines, 90 lines, 100 lines plastic extrusion extruder 3d roller 1,Grating design has: 60 lines, 76 ... Japan imported roller, pictures for reference, according to the project. plastic extrusion 2,Grating design has: 60 lines, 76 lines, 90 lines ... according to the project.3d pp extruder3, PP, PET 3d plastic extrusion is our independent development, design, optimizes project products.3d ...