Virtual assistant to contact packaging companies

We have 5,000 tea tins which have some surface stains on which can only be removed by heat.

I need someone to contact some packaging companies in the UK which have a PVC PE PP Heat Film Shrink Wrapping Machine Packaging Machine. The tins will pass through this machine and the heat applied will remove the stains, no plastic wrapping will be applied to the tins just heat.

We have currently been using a heat gun to remove the stains but as you can imagine this takes some time.

Attached is photos of the heat sealing machine which most packaging factories will have and also the stains on the tins.

I need someone to find out the cost from the factory for resolving this issue. I have 4 pallets of tins.