Company Description
hanghai hynote import and export Co., Ltd., Shanghai Hynote, established in Pudong new area of Shanghai, is found at 2002 by experienced personnel from reputable Chinese R&D institutions and gas industries, focusing on producing and sales of electronic gas, specialty gas, high-purity gas and gas mixture. As well as our plant locate in Luoyang, Henan province, to serve our customer with R&D technology and purification proce