1.Steel split pulleys are available, different dimensions can be offered ... 70 %raw material in production process than normal pulleys, high strenth and long life time 2.Application: ... cutter, air compressors, etc. 3.All series of pulleys can be made in S45C,GG25,GG40 and aluminum ... phosphated , painted or passivation as yours requests. 4.Our pulleys are manufactured according to ISO 9001 & ISO 14001, ...