Changsha Friend Experimental Analysis Instrument Co., Ltd. is a leading brand of petroleum product analysis apparatus field at home. As professional manufacturer testing equipment, we are an active member in standards organizations and lead standard development to guarantee that the ...

SGS provides innovative services and solutions for every part of the oil, gas chemicals industry. Our global network offices, laboratories our dedicated team allow us to respond your needs, when where they occur. reputation independence, excellence innovation have established as market ...