... part 1.Material:steel 2.Process:turning surface treatment:no professional manufacturer steel ... material and specificationsSome pictrues of our company for your referenceOur factory:Order details: ProcessingCNC Machining, Turning, Milling, ... Stamping, Die Casting, injection mould,4&5 axis machining Applicable MaterialAluminum/zinc alloy, iron, steel alloy, plastic, brass, steel, and ...