Xingtai Shanfeng Special Rubber Product ltd, with the registrating trademark of "NQK.SF", is a factory specializing in producing oil seals. Our company lies in hetou Industrial Area, Renxian County, Xingtai City, Hebei Province. Our company has many advanced equipment and accurate instrument. Some equipment such as model-making equipment are from Taiwan. We have obtained ISO9001 certificate. More than 100,000 products are produced every day. The adoption of precise detecting instrument can serve customers best products of high quality. The products of "NQK.SF" have two main series: seal and oil seals. There are more than 4000 kinds of products in all, which include oil seals used in automobile cars, motorbikes and other engine machines. We have oil seals made of rubber and framework oil seals as well. Based on the spirit of "Quality is target of NQK.SF Company; Customers are our God; Credit is our power", we sincerely hope to cooperate with customers from all over the world. If you are interested in our products, please do not hesitate to contact us.