Cast iron gate valve: 1. Common Material: HT150,HT200,HT250,HT300,QT400,QT450,QT500,QT600etc. 2. Customizing and OEM Cast Iron gate valve, Steel casting ... , Cast iron, Casting:1. We can produce casting product as ... Rough Casting Product Show: Finish Machining product Show: Customized cast iron gate valve OEM