Product name: Grey iron casting for air compressor Material: Grey iron 250, GG25, EN-GJL-250 (EN-JL1040), FC250 Production process: Sand casting, annealing, precision machining, shell molding casting, resin sand casting, sand blasting Unit Weight: 0.5kg-500kg, 1lbs-1000lbs Size: According to drawing Customizable or not: Yes Packing: Carton, plywood cases, pallets Certificate: ISO9001:2008 Application: Screw air compressor, sliding vane air compressor Origin: China