From October 1st, 2014, Jiangxi Province will promote the use of diesel fuel for China IV in the province, with higher prices for premium products. The price per ton will increase by 370 yuan (0.32 yuan per liter) compared to the National 3 (standard product). It is reported that from October 1 to December 31 is the transition period for vehicle replacement of diesel fuel in our province. During the transition period, the three countries and the four countries used vehicle diesel to sell in parallel. By the end of the year, all the three vehicle diesels were replaced with national four vehicle diesel. Throttle Valve,Hydraulic Directional Solenoid Valve,Directional Control Hydraulic Valves,Cartridge Relief Valve Huai'an Aide Hydraulic Machinery Co.Ltd , https://www.aidehydraulic.com