厚度为14mm的Q345R钢板对接焊缝平焊试件带衬垫,使用J507焊条手工焊接,试件全焊透,项目代号为
A.SMAW-FeⅡ-1G-14-Fef3J B.SMAW-FeⅡ-1G(K)-14-Fef3J C.SAW-FeⅡ-1G(K)-14-Fef3J D.GTAW-FeⅡ-1G(K)-14-Fef3J正确答案B
厚度为14mm的Q345R钢板对接焊缝平焊试件带衬垫,使用J507焊条手工焊接,试件全焊透,项目代号为
A.SMAW-FeⅡ-1G-14-Fef3J B.SMAW-FeⅡ-1G(K)-14-Fef3J C.SAW-FeⅡ-1G(K)-14-Fef3J D.GTAW-FeⅡ-1G(K)-14-Fef3J正确答案B