“Zhengdong”is our brand with super quality.Now more than 1000 types of Locks are used all kinds of mtorcycles,electric bike and cars. The lamps & lanterns with Chinese motorcycle association authorized are used in all kinds of min. Cars . The life of our products is more than 50,000 times, and the key locking system incorporates more than 1000 different combinations. We have been entitled Ruian star enterprise, Zhejiang famous brand products, and so on. We have effected the responsible risk in PICC. We also have got the certification of ISO9001 issued by China Auto Products Certification Committee and USA RAB and TS16949 certification.