%0 Journal Article %T Modern Ultrasonic Methods for Residual Wall Thickness Measurements of Metal Products under Protective Coatings %A Syasko, V.A. %A Bulatov , ะก.. %K ultrasonic testing, coating, residual thickness, echo-echo- method %J NDT World %D 2016 %N 19 %P 4 %I LLC SVEN