... umbrella.sponge foam,leather,reflective material,plastic,paper,two-side glue,acetate fabric,reinforced belt,conductive cloth,copper,foil and other ... and control positive and negative switching.2 Equipped with the automatic system,can be sharpened without move blades,long-term blades ... move without abrasion to get the best quality.5 Using LCD Chinese screen interface can be directly input kinds of ...