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The Material Works Ltd. specializes in providing eco pickled surfaces. Eco pickled surface (EPS) is a patented process to replace acid pickling of flat rolled steel. Like acid pickling this process also removes mill scale from the surface of hot rolled steel including stainless. Unlike acid pickling EPS pickling is safe and completely harmless to the environment. Instead of caustic acids EPS uses steel grit mixed with ordinary water and continuously recycles and re-uses these two process ingredients. Line speed is controlled automatically using an optical device that measures the brightness of the exiting EPS strip.