Cylinder with high quality and competitive price Material: Iron/Alluminum, Copper, Alloy, Carbon steel, 18CrMnTi,20CrMnTi Cylinder with high quality and competitive ... , electronic, telecommunications, mechanical products, medical devices, etc.;8):Material: Iron/Alluminum, Copper, Alloy, Carbon steel, 18CrMnTi,20CrMnTi,20Cr,20CrV,1045 steel, Others ...