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Proto Labs Inc is an on-demand manufacturer of custom parts for prototyping and short-run production. The company offers developers and engineers quick-turn production services to reduce the time to market. Proto Labs uses injection molding, computer numerical control machining, and 3-D printing to manufacture custom parts for its clients. The company services clients' needs for prototype solutions, parts for testing procedures, bridge production capabilities during disruptions in manufacturing processes, limited-quantity requests, and end-of-life production support. The majority of its revenue is derived from the United States of America.
BlackRock Municipal Income Fund Inc is a diversified investment fund with an investment objective is to provide common shareholders with high current income exempt from U.S. federal income taxes. The company invests in Transportation, Corporate, County/City/Special District/School District, Health, Utilities, Education, Housing, and other sectors.