00373    a2200133   4500082001700000100001600017245004500033260003600078300002300114650002000137650003600157650003600193650001000229  a621.977bGUP  aGupta, R.C.  aWelding engineering science & metallurgy  aNew DelhibS. Chandc1985g1985  a[viii],112p.c21cm  aApplied physics  aSoldering and welding equipment  aFastening and joining equipment  aTools