Does anyone know a business that uses or applies coatings using the chemical vapor disposition method. I am looking to have some rifle parts coated , with something similar to titanium carbo nitrite , but need to use the chemical vapor disposition method to get into small confined areas. Looking for a hard coating in the 85-90 rockwell level. Might not be able to get to that hardness however. I know this is an unusual question, but there is alot of knowledge on this site.