Sun Xiaofeng

Door and window section bar

Surperficial annular knurl device of section bar is extruded to square tubular goods

Equipment is corrected on line to section bar

Square tube extrusion profile surface knurling device

Take adhesive tape section bar extrusion tooling

Hollow and solid profile extrusion tooling

Equipment for rectifying side-hung plastic main profiles

Device and method for knurling surface of square tube type extrusion sectional material

Device preventing sectional materials from deformation and distortion

Useless plastotype material extrusion tooling