" HBY Self-defense Tech primarily in the area-defense and homeland security arenas.  We develop and supply a broad portfolio of airborne and land systems products for area defense, homeland security and commercial applications.  We perform comprehensive platform modernization programs. In addition, we provide a range of training and support services.  Our major activities include Unmanned military/Civil Aircraft Systems （UVS）; electro-optic, night vision, Bulletproof valves, Laser Devices, and Multiply Tactical Scopes.  We are keen on exploring potential business opportunities and partnerships. With our focus on quality and innovation, we are committed to delivering exceptional products that meet the diverse needs of our clientele. "