crystal oscillator lid 1.material:Lid ASTM F-15 Alloy 2.plating ... stamping partsFacility:stamping machines,automatic stamping machine,punching machines,bending machines,welding machinies, lathes,Milling ... machine,Grinder,Radial drilling machine and so onMeterial:SGCC(galvanized sheet),stainless ... best quality and delivery crystal oscillator lid