000 00311nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a670.52
100 _aKhanna O P
245 2 _aA Textbook of Welding Technology
250 _a1
260 _bDhanpat Rai Publications Pvt Ltd, New Delhi
_c2010
942 _cBK
999 _c17811
_d17811