000			00347nam a2200145Ia 4500
008			231217s9999 xx 000 0 und d
041			_aEnglish
082			_a671.52 KHA
100			_aKhanna, O P.
245		0	_aWelding technology
260			_c1993 _bNew Delhi : Dhanpat Rai,
300			_a760
650			_aWelding technology
942			_cAA
999			_c162991 _d162991