grate casting 1.Materials: 2520 heat resistant steel 2.Certificate: ISO 9001:2008 3.all types heat resistant steel grate casting1, Material: Stainless steel, Carbon steel, Alloy steel, Heat resistant steel,Iron,Grey iron ... , Small and mixed orders accepted7, Casting Process: Investment castings 1). Weights: 0.1 Kg TO 2000 Kg2). Standard:ANSI, ASTM, DIN, JIS ...