1. Designed according to DIN/ISO standard 2. Casting or forged steel for body material 3. Low price and good performance Cast Iron Gate Valve Description of PartsMaterialsValve board Cast steel, gray cast iron, ductile ironGateway boardDuctile iron coated with EPDM or nitrile rubberWithin the hexagonal boltsCarbon of handlingSeal ringBunaBonnetGray cast iron, ductile iron, cast steelValve ...