... Parts by Aluminum Sand Casting Process with Precision Molds and Tooling,power coated with black.T6 heat treament. Material: aluminum alloy ... and cutting, milling, grinding, drilling and reaming,threading. Surface finish process: polishing shot blasting, chromate plating, power coated ... other industrial uses Processes: CAD service, metal processing, surface plating, QC testing and packing Weight: 0.010 ...