Sanwei company has kept the postion----- energy saving, electronic ballast, electronic products(Nap zapper;air leakage alarm;anti theft alarm) ba rubber belt, the material handling equipment such as the elevator bucket , bolts , conveyor belt, plastic drag flight , chain ,nylon wheel, clean accessories, UHMWP sheeting , screw, the position of leadership for about fifteen years and get stronger than ever in sales, in performances , in prestige . Back of every Sanwei company is the chineses largest factory devoted exclusively to the manufacture of devices for electronic products material handling equipment. Back of every Sanwei is the famous engineering staff and their patent- protected features that you find better.we hope have a good chance to join together