The Barge Subject for a Work Order Placed with Our Company: at Yokohama Dock of Mitsubishi Heavy Industries         Sandblasting and coating for bottom outer plates of the vessel (a priming process that uses 5-6 kg of air pressure to blast sand and grit onto the plate surface to remove rust and coating) Today, water blasting has replaced sand blasting; however, the conventional method is still used for work inside the tank, etc.     Corrosion and defects are repaired before blasting, by soldering or replacing iron plates.     Four to five primers and coatings are applied on a sandblasted iron plate, after measuring chlorine precipitation, humidity and other indicators.       A view after completion of the final coating       The vessel is pulled by a tugboat for delivery to the customer, after the final inspection witnessed by the customer.