... shielding effectiveness, high heat dissipatio metal shell for Module power1.material:copper,iron,aluminium,copper alloy2.High shielding ... lathes,Milling machine,Grinder,Radial drilling machine and so onAdvanced machines guarantee the products to be precise ... process:Mold-designment,cutting,punching QC,packing and deliveryAll the material and surface treatment conform to ROHS environmental requirements ...