621.80222 BHA 17550 34593 34594 34605 34607 34613
Bhatt, N. D. Machine drawing / by N. D. Bhatt and V. M. Panchal. - 28th ed.. - Madras : Charotar, 1993 xv, 214p. : ill. Includes index. * Engineering drawing Scew threads Technical drawing * Panchal, V. M. * Title
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