英語書籍】 6WS 6th International Welding Symposium Vol.1 溶接学会 1996 大型本 物理学,Gas Tungsten Arc Welding Handbook, 7th Edition - Goodheart-Willcox,Exercises in Building Construction,Design of Welded Structures, by Omer W. Blodgett, Sc.D., P.E.James F. Lincoln,Welding