Quality assurance and quality control during construction consists largely of insuring conformance to the original design and planning decisions. With attention to conformance as the measure of quality during the construction process, the specifications of quality requirements in the design and contract documentation becomes extremely important. We have defined our quality policy as a means for clarifying and realizing our management policy in order to "increase customer satisfaction by providing products and services that match the customers' needs with appropriate quality, due date and price and we have been certified as an ISO9001 management system qualified company.