We're a performance shop from the United States. I need you tell us what technology do you use to make the camshafts, casting and grinding? What alloys are you capable of producing and what is the precision level? Please let us know how your pricing works, and is there a possibility to obtain a prototype from you. We need around 1200 camshaft sets, 4 camshafts per set. Looking forward to hear from you. Thank You.