Recently Bohl Crane, a R&M Materials Handling Master Distributor for over 20 years, completed a third major custom engineered overhead lifting equipment installation at TH Plastics, Inc’s Bowling Green, Ohio plant location. TH Plastics is an injection molding company that manufactures decorative solutions for the appliance, automotive, industrial and consumer products industries. custom engineered 20-ton double girder bridge crane as part of the overall solution to increase productivity and output by maximizing the existing manufacturing space vertically and horizontally.