Proportional and servo valve technology / H. Dõrr... [et al.]

Proportional and servo valve technology / H. Dõrr... [et al.] . - Lohr am Main : Mannesmann Rexroth, cop. 1986 . - 259 p., pag. var. : il. color. 31 cm . - (The hydraulic trainer; 2)
621.22