Changsha Friend Experimental Analysis Instrument Co., Ltd was certified with ISO9001:2008 Quality System, It covers 10 series of products of fuel oil and lubricating grease, etc. and more than 100 specifications and varieties in compliance with the standards of ISO, ASTM, IP, GB and SH, etc., and the products are widely applied in such industries and trades likebiofuels, petrochemical, environmental, quality control, and manufacturing industries petrochemical complex, measurement, metallurgy, mechanicals, communications, armies, schools, aviation and foods, etc. and are well sold to the international markets of middle East, Southeast Asia and Russia, etc.