... The product performance of the machine hold a leading position in the same industry of home and abroad. ... etc., and has the unique flywheel drive effect. 3.We can supply ring die with the aperture diameter ... of 2. 2.5, 3,3.5,4,5,6,8,10 mm for ... security magnet , overload protection equipment, anti-operate position limit switch, which have solved the customers fear of trouble ...