Nanjing Longer is a professional designer and manufacture of precision slip rings, it was established in 2006, with more than 200 employees and cover the area around 2000 foot square a.Nanjing Longer's engineers in R&D team and testing center are with the higher educational and have abundant experience in machinery structural design and industrial control.All of slip rings are produced with most strict process in line with national standard, industrial standard and European standard. Nanjing Longer slip rings are widely used in civil and military fields, ranging from CCTV security, electric power generation, measurement instruments, industrial automation , medial equipments to building construction. Besides the power & signal combined slip rings, it also supplies high frequency rotary joints and Hydraulic/pneumatic/encoder hybrid slip rings. Nanjing Longer obtains certificates of CE, RoHS and ISO 9001-2008.Our products has exported to many countries and get good feedback from custmers.Nanjing Longer can not only offer full sets of standard slip rings but also customized slip rings based on the customer's special requirements.We also providing both OEM and ODM services for world famous brands and customers.Nanjing Longer Electronic Co.ltd. is a wishing to cooperate with you soon!