SWD Inc. specializes in Black Oxide, Passivation, Phosphating, Dip Spin Coatings, and Vision Camera Sorting. SWD is a licensed applicator of Doerken, Magni, and Yuken Coatings offering numerous automotive and industrial specifications. SWD is the largest Black Oxide processor in the USA. SWD’s fully automated coating lines provide “Gentle Handling” of customer supplied parts to ensure large parts can be processed without causing nicks and other damage that can occur during bulk or rack processing. We are family owned and operated with over 40 years experience. (less)