180 degree open angle gives the users more convenience and comfort

With adjustable frame box adjustable in three dimensions and provident for the users in the after-sale installation 

Easily install and simply adjust only with an inner hexagon spanner if the door had some changes as the time passed by

Inner, firmly rotating axis

Wear and maintenance-free ball bearing technology

Have the characters of anti-fire, anti-smoke, rustproof, damp-proof, anti-friction and environmental protecting features

This product has applied for the national patent

This product was tested by TUV, comply with requirement of BS EN 1935