Ramway is a high-tech company specialized in manufacturing lithium battery,latching relay. Ramway is one of the leading global supplier of primary lithium battery and latching relay with international advanced technology. Ramway products are widely used in utility metering, security system, remote reading sensors, cold chain monitoring, GPS positioning ,et. All products strictly follow the ISO international quality system standard. All products comply with IOS certification. Battery products comply with CE, UL, RoHS, UN38.3, MSDS certificates. Most relays have TUV certification, complied with UC2/UC3 and CE, CQC, RoHS.Ramway will be dedicated to provide you with quality products and service.