... 1, material; magnesium alloy 2, surface treatment : passivation 3, thinkness ; 1.0mm Magnesium die casting1, Magnesium die casting 2. SGS Factory Audit , ... engraving machine, CNC forming machine CNC turning, EDM, Linear cutting machine, Die spotting machine(200T), Die casting machine(150T~ ... JSCAST-v8, Solidworks etc.Quality certification SGS. ISO9001-2008 magnesium alloy die casting for e-book holder