According to statistics released by the National Bureau of Statistics of China, China’s lubricant production reached 698,000 tons in June, an increase of 8% year-on-year; From January to June 2011, China's lubricant production reached 4.247 million tons, a year-on-year increase of 13.9%. Hydraulic Rotary Valve,Six-Way Rotary Valve,Flexible Rotary Valve,Rotary Control Valve Shuyang County Huji town Desheng hydraulic machinery factory , https://www.deshengvalve.com