About SURKOV A V
About BARYSHNIKOV YU I
About KIPIANI P N
About TALANOVA N A
About PANOV V I
About Svarochnoe Proizvodstvo
About high alloy steel
About Mechanical properties
About Weld zone
About 組成
About 合金
About 母材
About 溶接継手
About 性質
About 評価