... , SGS 2.Material: magnesium 3.Surface: sand -blasting precision casting magnesium1, Magnesium die casting 2. SGS Factory Audit ... featureAdvanced design, Novel structure, High precision, Quality materials, Long lifetime, Short delivery time EquipmentsCNC precision mould engraving machine, CNC forming ... , Solidworks etc.Quality certification SGS. ISO9001-2008 precision casting magnesium for lamp shade