PCB shielding cans (EMI screening cover ),There usually design to two type , one piece emi shielding frame and emi shielding cover with removable emi shielding cover,The shielding frame (shielding fence ) was welding on the PCB board follow the PCB layout , Often we use tinplate (SPTE metal sheet ) or Nickel silver ( white copper ) as material , Both of these good at welding .
Sometime customer require small quantity run at the first place , We can provide trial order to test by your device , After the proto types pass the testing then goes mass production ,That's can easily prevent the modification cost if the parts design need change .