kinds of Timing Belt Pulley Pulley type:MXL,XL,L,H,XH,XXH, ... me your drawings,we can do as your design Timing Belt PulleyPulley type:MXL,XL,L,H,XH,XXH,3M,5M ... Material for option:aluminium alloy,steel,stainless steel,iron,plastic,nylon,etcMax width of the pulley :520mm.Surface treatment:High frequency ... machine,drilling machine,gear shaper,hobbing machine,grinder,testing center belt conveyor drum pulley