| We are U.S. Customs Approved Inspectors, Gaugers, Testors of petroleum products, other liquids and dry products. We do tank calibration, strapping, measuring, surveys, testing, monitoring, enviromental analysis and laboratory work on tanks, tankers, ships Columb Columbia Inspection (CI) was established in Portland Oregon in 1978 and is an American developed company. Well established and believing in protecting their customers interests with the highest levels of liability pr.. |
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