... price Material: Iron/Alluminum, Copper, Alloy, Carbon steel, 18CrMnTi,20CrMnTi Cylinder with high quality and competitive price1):Production machine:most advanced CNC ... equipments:Roundness Meter,Projector Meter, Microscope, Gear-test Meter, Surface measuring Meter and so on;13):Products range: standard component or ... to us within 30days;16):on-time delivery Hexagon Copper Cylinder