Avionics Maintenance and Repair Surplus in Stock for sale with FAA or JAA or OEM cert. Competitive Price! Respectively located in Guangzhou and Harbin and easily expanding influences to inland China from south to north, the two maintenance bases of Hangxin Group can deliver a very convenient services to all Chinese airlines clients and aircraft owners. Singapore Hangxin Aviation Engineering Co., Ltd. is a platform for Hangxin Group to provide aviation engineering services for all airlines clients in Asia Pacific regions. ????Hangxin Group has accumulated rich experience in repairing complicated and hi-tech avionic products, and has enjoyed powerful maintenance capabilities and reliable maintenance quality.