We are one of the most professional oxygen sensor manufacturers in China who is very near from ShanghaiOur product range: (1)1,2,3,4-wire Thimble zirconium oxygen sensor(w or w/o heater,universal/direct fit)(2)4-wire Planar oxygen sensor(universal/direct fit) (3)5-wire wideband is under technical development,will come very soon Our oxygen sensors could cover 90% global cars,especially European/ America cars. We are possessing of unique manufacturing crafts which is the same as Bosch and strictly under TS16949 standard for production management,our key raw material are all imported from overseas. We are now China exclusive oxygen sensor partner of a number of top-500/top brand enterprises which improve our good quality deeply.