metal box for PCB Material:C.R.S. brass,iron,aluminium Finish: electrolysis, ... ,and ISO9001 certificationWe are supplying kinds of case and base for electronic components,such as crystalresonators,oscillators,OCXO,TCXO,VCXO,filters ... will serve you withthe best quality and delivery. metal box for PCB 22 22 11.5mm