bK cylinder details WE HAVE 3 TYPES OF CYLINDER BODY For Brass Diameter16.5*9.5*32.5 16.7*9.7*32.7 16.8*9.8*32.8 17*10*33WE CAN DO ANY SIZE FOR BRASS For Zinc Diameter16.5*9.5*32.5:60MM,70MM,70(30/40)MM,75MM,80MM,80(35+45),90MM,90MM(40/50),90MM(35/55),90MM(30/60),100MM16.8*9.8*32.8:60MM,70MM,70(30/40)MM,75MM,80MM,80(35+45),90MM,90MM(40/50),90MM(35/55),90MM(30/60),100MM17*10*33:70MM For Aluminum Diameter16.5*9.5*32.5 16.7*9.7*32.7 16.8*9.8*32.8 17*10*33WE CAN DO ANY SIZE FOR ALUMINUM if using brass core WE HAVE 2 TYPES OF CYLINDER CORE For Brass CoreFLAT HEAD, CIRCLE HEAD For Zinc CoreFLAT HEAD FOR 60MM, CIRCLE HEAD FOR 70MM