... ' requestShape ManufacturedFlat Bar, Square Bar, Round Bar, Rings, Hollows, Discs, Blocks and special Shapes. Surface ... A269, ASTM A312, JIS G3459, DIN 17458SuperiorityHigh quality and Competitive priceApplicationfor Construction field, ships building industry, ... : Petroleum, chemical industry, electric power, boiler, high temperature resistant, low temperature resistant, corrosion resistant seamless ...