A:Product Description1, OEM steel investment castings with surface powder coated2, Material:C453, Weight=3560g4, Process:steel investment castings, ... 5, Surface:shot blasted and then orange powder coated.6, Used in marine machinery industry.7, Place of origin ... .Drilling,CNC milling and so on allowed.6, other surface treatment,ie.paint,powder coated,zinc plated,blacken and so on ...