Wenzhou guocheng automobile electronical parts.co.,ltd. is located in wenzhou, zhejiang the city of china automobile parts. it was founded in 1997Â¼ with construction land area of 3000 square meters, construction area of 8000 squaremeters.Â Our Company Integrates Product Development, Production And Trading Of Stepper Motor, Idle Air Control Valve, Throttle Position Sensor And Other Sensor Series Etc. Now we have more than 100 staffs, 4 experienced technical engineers, 18 professional technical and inspection staffs, ensuring the resource requirements of product development and quality control. We insist that My Professional Ability, Your Forever Trust.