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Cutting and drilling using standard office equipment and are approved by the Inspection Company     Welding in accordance with the instructions or the requirements in accordance with the WPS standard and are fully processed and controlled Welding is non-destructive (NDT) are performed under the supervision of an expert approved by the Department of Hydrostatic testing (testing the water) in the presence of an expert inspector of the Bureau of Standards and the Office of the directives and requirements of the standard are The materials used in housing insulation to reduce heat loss from the boiler in the standard and approved materials are used. To recap for the sheet steel used. Cutting and drilling using standard office equipment and are approved by the Inspection Company Welding in accordance with the instructions or the requirements in accordance with the WPS standard and are fully processed and controlled Welding is non-destructive (NDT) are performed under the supervision of an expert approved by the Department of Hydrostatic testing (testing the water) in the presence of an expert inspector of the Bureau of Standards and the Office of the directives and requirements of the standard are The materials used in housing insulation to reduce heat loss from the boiler in the standard and approved materials are used. To recap for the sheet steel used.

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