TY  - ADVS
ED  - AVS Multimedia
TI  - Basic hydraulic eqipment: directional control valves 
SN  - MED0000734(Local)
PY  - 1987///
CY  - East Sussex, England
PB  - AVS Multimedia
KW  - Hydraulic cylinders
KW  - Hydraulics
KW  - Training
KW  - Hydraulic control
ER  -