... 2.High shielding effectiveness, high heat dissipatio metal shell for Module power1.material:copper,iron,aluminium,copper alloy2 ... Many years experience in metal stamping partsFacility:stamping machines,automatic stamping machine,punching machines,bending machines,welding machinies, lathes, ... machine,Grinder,Radial drilling machine and so onAdvanced machines guarantee the products to be precise and the ...