... OEM drawings are welcome Detailed Product Description ITEMAluminium auto audio cover Die casting mouldCavitySingle or multipleMaterialH13,DIEVAR,QDN,8407, ... material direct reading spectrometer, aluminum material hardness meter, X optical testing machine, tensile testing machine, used from mold manufacturing ... technique on die castingCertificationsISO9001:2008, TS16949 Aluminium auto audio cover