I am working on a new project that requires some magnesium castings. These castings need a high performance corrosion resistance coating applied to them that is also black colour.I understand that you are able to offer Keronite coatings on magnesium castings..Please could you give me a quotation for Die cast tooling and castings in magnesium alloy AM60B with a black Keronite coating.Please could you quote in batches of 500, 1000, 2000 and 3500 pcs.