Our special and rock drill steel company total investment of 500 millions, it’s customized produce the rock drill steel for our products, we can produce almost all kinds of rock drill steel, in the production process, H22 Rod have the largest production output, it’s using the material of 40SiMnCrNiMo , and it’s performance are better than the rod use the material of 95CrMo and 55SiMnMo. Because of our rod’s stable quality, timely delivery, reasonable price, that’s makes our company soon became one of the largest suppliers of H22 Rod in China.