The raw material of bark is supplied by large lumber processing factory, all treatment process all uses special machine, be like disintegrator, muller, fiber centrifuge, grading equipment and packer.

• 树皮的原料由大型木材加工厂供给，所有加工过程均采用专用机械，如粉碎机、研磨机、纤维分离机、分选设备和包装机等。