Inquiry (采购产品): Phosphate Plating There are various types. Can you give me a call to discuss the advantages/disavantages. I have a vendor in Mentor who machines investment 4150 steel castings that get electroplated Zinc/Yellow. Would like to switch to a black of gray finish that doesn't add thickness. Corrosion protection is not critical. 330 298-4045 **** Hidden Message ***** Mike Sweeney 44266 Company: Parker Hannifin Corp. Parflex Div. E-mail: msweeney@parker.com **** Hidden Message ***** msweeney@parker.com