Pengelasan Tube Bundle PLTU Muara KarangWelder Performance Qualification TestReviewing Radiography FilmRetubing. Reheating PT PJB – Muara Karang. Mechanical Test – PT Gamma Mekanika Gemilang NDT – PT Gamma Mekanika Gemilang WPS PQR – PT Gamma Mekanika Gemilang Radiography Test – PT Gamma Mekanika Gemilang Training – PT Gamma Mekanika Gemilang