Can you do polycarbonate? I've got an enquiry from a customer who wants 300 off 50mm dia x 2mm thick. It has to be an optical finish (basicaly just see- through). It's not economilca for me to machine them but we can get the coating work if I can sub- con the component manufacure- tol ion thickness is +/- 0.1mm, tol on dia is +/- 0.2mm.
Thanks in advance.