Ningbo optimal micro intelligent technology co., LTD. Is a collection of r &aamp;d, design, manufacture and sales as one of professional manufacturer of sensors, the main products are automobile oxygen sensors and oxygen sensor and heavy trucks with motorcycle exhaust temperature sensor, etc. Products with high technical content and unique manufacturing process, performance is stable. Company has an experienced, energetic, professional and technical team, with independent research and development ability at present most of the products of...