1. Core Positioning​ A key component of the automotive door system, installed at the connection between the door and vehicle body. It controls the door opening angle via a mechanical structure to prevent over-opening collision with obstacles, restricts random door sway, and improves door opening/closing stability and safety. Compatible with all passenger and commercial vehicles.​ 2. Core Functions​ Multi-Angle Positioning: Supports 30°/60°/90° three gears, meeting door operation needs in narrow lanes, parking lots and other scenarios；​ Buffer & Vibration Reduction: Built-in damping structure reduces impact force during opening/closing, avoiding hard collision between door and body；​ Weather & Wear Resistance: Made of cold-rolled steel/stainless steel, resistant to -40℃ to 85℃ and rainwater corrosion；​ Safety Protection: Limits maximum door opening angle (≤95°), preventing hinge damage caused by wind resistance or external force.​ 3. Core Advantages​ Safe & Stable: Precisely controls angle, reducing the risk of door colliding with body or obstacles；​ Long Service Life: Anti-aging metal structure, service life ≥5 years/150,000km；​ Easy Installation: Direct replacement of original limiter, adapting to original door hinge interface without modification；​ Mute Design: Damping components reduce friction noise for smoother door operation.​ 4. Adaptability​ Vehicles: Covers passenger vehicles (sedans/SUVs/MPVs), commercial vehicles (light trucks/buses)；​ Door Types: Adapts to front/rear doors, supporting custom sliding door-specific models (optional).​ 5. Service Support​ Contact customer service for vehicle adaptation lists and installation diagrams; free guidance on installation tips is provided.