TOSOK is developing and manufacturing control valve bodies that are equivalent to the heart of Automatic Transmission(AT) and Continuously Variable Transmission(CVT) , solenoid valves, spool valves and harness module as a component parts of control valve assy.
TOSOK also promote innovative technological products related to environmental issue, energy saving control and end dependence on fossil fuels.

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• Control Valve Assy
• Stepping Motor
• Solenoid Valves
• Spool Valves /
  Harness Module
• Electric Oil Pump