1. Metal material valves: such as carbon steel valves, alloy steel valves, stainless steel valves, cast iron valves, titanium alloy valves, Monel valves, copper alloy valves, aluminum alloy valves, lead alloy valves, etc.
2. Metal valve body lining valve: such as rubber lined valve, fluorine lined valve, lead lined valve, plastic lined valve, enamel lined valve.
3. Non metal material valves: such as ceramic valves, glass valves and plastic valves.
