51142 operation valve products are offered for sale by suppliers on Alibaba.com, of which hydraulic valves accounts for 9%, other valves accounts for 3%, and control valves accounts for 2%.
A wide variety of operation valve options are available to you, such as normal temperature, medium temperature.You can also choose from stainless steel, aluminum alloy and carbon steel operation valve,as well as from black, white, and silver operation valve,