Guizhou Widun Crystal Phosphorus Electronic Materials Co., Ltd., established on 2006-03-28, Business scope includes legal,regulations,Those prohibited by the State Council's decision shall not operate;law,regulations,The State Council has decided to allow(approval)of,After approval by the examination and approval authority(approval)file management;law,regulations,The State Council has decided that a license is not required(approval)of,Market entities independently choose to operate.(phosphorus oxychloride,Red phosphorus,Phosphorus sources such as phosphorus pentoxide,boron tribromide,Boron source such as triethyl borate,tetraethyl orthosilicate,Trimethylaluminum,Vapor deposition sources such as hexachlorodisilane,trans-1,2-Dichloroethylene,Lead-free low melting point glass powder,potassium carbonate,Production of fine chemicals such as potassium dihydrogen phosphate,Sell the company's own products;Import and export.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments))