кульовий (кульковий / сферичний) клапан; кульковий зворотний клапан
check valve / non-return valve
non-return valve / check valve
valve push rod ball end
ball valve
spot check (spot- check)
brake vacuum check valve
baffle check valve
check valve
metering check valve
orifice check valve
swing check valve
actuator deceleration vent check valve
ball
ball ammunition
ball joint
ball socket
paint ball gun
rounds of ball cartridges
rubber-ball grenade
rubber-ball round
angular ball bearing
angular contact ball bearing
annular double-row ball bearing
annular single-row ball bearing
annular single-row shielded ball bearing
ball bullet
ball cock
ball coupling
ball guide
ball head of propeller tube
ball holder
ball journal