metal box for PCB Material:C.R.S. brass,iron,aluminium Finish ... machine and so on .3.Meterial:carbon steel(CRS or HRS,galvanized steel),stainless steel,copper,brass,aluminum,etc4. ... ISO9001 certificationWe are supplying kinds of case and base for electronic components,such as crystalresonators,oscillators,OCXO,TCXO,VCXO ... will serve you withthe best quality and delivery. metal box for PCB 22 22 11.5mm