... Materialductile iron, gray iron, carbon steel, low alloy steelStandardDIN, ASTM,JIS etcCertificateISO9001:2000 ISO9001:2008 ISO/TS16949Weight range1Kgs-2000KgsMoulding Processsodium silicate sand casting, resin sand casting ... information, pls feel free to contact with me.Best regardsstone sand casting Wheel Hub