... pump body 2.Material:Grey iron 3.Process:sand casting 4.Quality Assurance 5.Test:chemical composition,tensile ... , JIS, BS, DIN, EN, ISOOperation: green sand casting and resin sand castingSurface finish: sand blasting, sand blasting, oiled, zinc, nickel, chrome plating, painting ... and reliability. It is designed for well pumping, garden irrigation and water supply to houses, hotels and high buildings. ...