Auto Repair Parts manufacturers Product details Part Name: Investment casting Tire Changer demount Head Production process: lost wax casting process. Casting process: Silica sol process Material: Stainless steel, Aging hardening steel 17-4PH Surface treatment: Vibration polishing. OEM: According to drawing or sample Product standard: ISO9001:2015 Delivery status: Raw casting (Machined thread) Assembly: finished by customer Investment casting Tire Changer demount Head. Metal casting has a historic pedigree as the manufacturing process first used by man to produce intricate metal articles and art object. It played a major role in the industrial revolution and remains the basis of current manufacturing equipment and manufactured goods.Auto Repair Parts manufacturers website:http://www.jd-investmentcasting.com/hardware-tooling/auto-repair-parts/