Tecnadyne has decades of experience in the design and production of electric thrusters. It is the world's leading manufacturer of underwater brushless dc thrusters. It provides small and durable thrusters that have been used in the intelligent military ROV and 7000m manned submersible projects in China.

Sub-altlantic, founded in 1997, is a global producer of underwater electric ROV. Production of a series of underwater carrier accessories, such as hydraulic propeller, dc brushless propeller, ac brushless propeller, hydraulic valve. Multiple sets of brushless dc propulsion units have been provided to the domestic navy ROV.

After years of promotion and market test, the Curvetech brand hydraulic propulsor of SMD company has gradually become the first choice of global large working-level ROV and underwater platform thrust program, which is widely used in underwater ROV, AUV and underwater vehicle.