Product name: Railing part Material:Grey iron 250, GG25, EN-GJL-250 (EN-JL1040), FC250 Production process:Sand casting, annealing, precision machining, shell molding casting, resin sand casting, sand blasting Unit Weight: 0.1kg-1000kg, 0.2lbs-2000lbs Size: According to drawing Customizable or not: Yes Certificate: ISO9001:2008 Origin: China