The company that does this well can be way ahead of other manufacturers with similar lines. ... Consider the European vacuum plumbing system where they cut down on risers, stack sizes and use of water. ... names in mechanical contracting, was the first firm listed in DE/ Journala#39;s Book of Giants to break the $100 million mark in annual volume. In 1970, Natkin listed $74 million in annual volume, reflecting many new contracts over its 1969 figure. ... Central, St. Louis, Mo., Peoria, III.