HANGZHOU HENNYCHEM MATERIAL CO.,LTD was founded in 1999, HHM is a division of Trade and Industry as a whole enterprise now, HHM is headquartered in Hangzhou City, Zhejiang Province and has strategic location, convenient traffic. HHM dedicated to the production and development of biphenyl, p-terphenyl,m-terphenyl,o-terphenyl, diphenyl oxide, hydrogenatedreiphenyl and its derivatives products, which are widely used in medicine, heat carrier, flashing reagent, electronics, liquid crystal, etc. Since the end of 2011, we no longer usd the domestic original biphenyl production technology, we use hydrogenation benzene which has lower chlorine content and sulfur content instead of low quality of the coking benzene, to guarantee the products meet the international requirements, at present the purity of biphenyl is not less than 99.9%, chloride and sulfur content are less than 10 PPM each. In addition, from the beginning of the year 2012, hydrogenated triphenyl and diphenyl oxide can also meet domestic and foreign customer needs.