... guarantee the quality 4.OEM service Item NO. jig and fixture design for sand casting productsMaterialsIron, aluminum, steel, copper, plastic, ... requests and specific drawings, either small or large quantity is acceptable for us.We are sincerely expecting to cooperate with you. ... anodization, E-coating, powder-coating and so on;8, Package: usually the parts are packed with cartons , then use pallet to ...