Ningbo Honger Tools Co., Ltd. Was founded in 1980, Which is a manufacturer of hardware tool assortment and rubber seal products, With its advantage location and convenient transportation of being at the south bank of Hangzhou Bay. The company possesses international first-class equipments, Advanced science, Technology, Excellent administrators and good service system. Strictly practiced under ISO9001 quality control system. Products of rubber seal, O ring kit , hardware tool are all superior quality and reasonable price, Especially the O type seal assortment, Which take 90% of the total alike export products in the country. Our products are used in airproofing or connectting oil, Gas of auto, moto, Tractor, Ship, Machinery and so on. We hope to research new products together with you. OEM is also welcome.