insemination device for cow
weft yarn insertion for rapier loom
(+)Testing device for heat lock-on pre
A Device for Adjusting Bearing Lubrication
a home made device for collecting blood gas specimens
A Special Gas Piping Device for Biogas Digester
anti-dazzle device for vehicle
anti-theft device for vehicle
automatic compensating device for boring cutter wear
Automatic cut-off device for pressure relief
Automatic device for verification of resistance
automatic stop device for lubricating oil pressure failure
auxiliary release device for spring-brake actuator
blocking device for telegraph
BZT device for auxiliary power source
clamping device for tower material protection on steel wire rope lifting point