Newton, MA-based Morehouse-Cowles has opened its new international grinding media and spare parts office in South Haven, MI. According to the company, this new facility will provide industries with the broadest selection of grinding media and Cowles blades of any single supplier in the world.      Grinding media selection at the new facility includes large and small, ferrous and non-ferrous varieties for use in most horizontal, vertical, ball, pebble, sand, jar and basket mills, Sweco, SW mill...