00329nam a22001217a 4500 3948 3948 200708b ||||| |||| 00| 0 eng d 621.84 P3613 Valve design / London Mech Engg. Publications 1978 358 p. Valves Design and construction BK 0 0 ddc 0 621_840000000000000_P3613 0 11393 CL CL 2020-07-08 621.84 P3613 07126 2020-07-08 BK