gear type hydraulic pump
open center type steering gear
reciprocating type steering gear
electro hydraulic steering gear
eletro-hydraulic steering gear
hand -hydraulic steering gear
hand-hydraulic steering gear
hydraulic steering gear
steam hydraulic steering gear
crossed helical gear pair
cylindrical helical gear
cylindrical helical gear with minority number of t
cylindrical involute helical gear
double helical gear (herring-bone gear)
double helical gear planer