VWR has acquired Integra Companies, Inc., and STI Components, Inc., expanding its portfolio of products for bioprocessing single-use system integration. Financial terms were not disclosed.     Integra provides single use connectivity solutions including tubing, hoses and gaskets for high-purity environments, and supplies a range of products to the biopharma, food processing, and microelectronic industries in the Northeast U.S. Headquartered in Devens, MA, Integra is ISO9001 Certified and operate...