621.84 ZAP 56566 55318 56567
Zappe, R. W. Valve selection handbook / by R.W.Zappe. - 3rd ed.. - Mumbai : Jaico, 2003 xiv, 345p. :ill. Includes index 81-7992-417-7 Rs.795.00 * Cheak valve Ruptur discs Value pistons
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