1,Usage:steel,solar 2.Hot sale overseas,80% for export 3.Professional manufacturer 4,Shape:Block pure silicon metal grade#441/553/3303/2202Size:10-100mm 90%min,or at customers optionPackage:In 2.5kg plastic bags with PE line or 1mt plastic woven bags with PE lineFeature:Black silicon metal is produced at high temperture in an electric resistance type furnace with quarts sand and pertroleum coke ...