concrete floor finishing machines; concrete floor finishing robots

[ speedometers; flow meters; magnetic and gyro magnetic compasses; applied ultrasonic echo sounders, echo ranging devices, and echo flaw detectors; radar antennas and transmitter-receivers sold separately and as a unit; electronic pilot apparatus sold as a unit for remote control of marine vessel steering and engine operation; ultrasonic thickness gauges; marine vessel steering system comprising a steering stand with steering wheel and operation control and display panel and electrical contro...