
Tungsten alloy oil casing has high hardness, good wear resistance and high smoothness, which has been widely used in modern society. It is suitable for daily use and special performance and can be used as wear parts in petroleum machinery wells. More product details, please visit: http://www.tungsten-alloy.com/tungsten-alloy-tube.html With the increase of oil extraction, the oil on the shallow surface is reduced. In order to ensure the use of oil, people gradually develop into large deep wells and high-angle wells. However,…