TY  - DATA
TI  - Hydraulics: valves 1 
SN  - AHHV1
PY  - 2000///
CY  - Maryland
PB  - William learning network
KW  - Hydraulics
N1  - Library internal view only; Valve basic (basic principle-manually adjust valves) Actuated valves (sliding spoool valves-spring biased valves-methods of actuation)
UR  - www.workplace training.com
ER  -