... drawing:Auto CAD solid work CAD CAM2.PROGRESS: Die casting ,Sand blasting, Clean burrs,Machining,Cleaning,Packing all by ourselves3.MATERIAL ... # Cu:1.5~3.5, Si:9.6~12.0, Mg:≤0.3, Zn:≤1.0, Fe≤0.9, Mn≤0 ... .5,Ni:≤0.5,Sn≤0.3,Al:remail4.SURFACE: SAND BLASTING POLISHING PAINTING 5.Quality certification:ISO9000 TS169496.It is ...