Since NJK group was founded, we are specialized in producing all O.E.M. rubber part for motorcycle, automobile and Industry in China. NJK have gained a considerable high reputation on quality stabilization in the market. With continuous innovation of Technique and expansion of productivity, we had imported the most highly advanced vacuum vulcanization molding machine which are fully automatic computerize controls. This would guarantee optimum quality by minimizing defects due to human-error. Mould design, rubber compound mixing, metal case bonded agent, rubber vulcanize, spring coiling, trimming and package all are proceed in our factory and 100% inspection in all procedure to ensure our quality and promote customer's competition on market.