Our company, established in 1991, is the exclusive and famous corporation producing patented brand (KAILUN and LUNKAI) motorcycle, electrical bike, bicycle and home series of alarm anti-theft locks. This lock series have been inspected by Provincial Quality Inspection Station and Quality Supervision & Test Centre of Alarm System for Security & Crime. The quality of our lock series is outstanding and the capability of guarding against theft is perfect. Our lock series have been appointed as ...