A:Product Description1, 4140 lost wax investment castings in color zinc plated2, Material:4140 wear resist steel.3, Weight=980g4, Process: ... water glass casting5, Surface:shot blasted.color galvanized.6, Used in mining industry.7, Place of origin ... and so on.6,other surface treatment,ie.paint,powder coated,zinc plated,chroming,polishing and so on.7,tensile strength&hardness ...