Need the suppliers of printing shielding can on the plastic and applications in Phone

Hi,
Who can provide the suppliers names of the printing shielding can on the plastic? More big the supplier, more better.
And,
Does anyone know which brand phone uses the printing shielding can on the plastic?
thanks.

It should be plating shielding can, not printing shielding can, on the plastic.
What is the advantage and disadvantage for the plating shielding can on the plastic?