... 3D roller 2 plastic extruder 3d roller Grating design 3 60 lines, 76 lines, 4 90 lines, 100 lines. 5 plastic extrusion 3d ... 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 ...