The exquisite design eliminates the trouble of slotting and pre-burial

Aluminum alloy has the characteristics of good processing performance and high toughness, which is widely used in the industrial and home decoration industries. In order to maintain the inherent corrosion resistance and plasticity of aluminum alloy need to add a variety of elements.

Wooden door no-dig floor spring with high standard management and professional knowledge, continuous. We use high precision CNC equipment to manufacture

Tighten the screw clockwise to slow down the closing speed

Loosen the screw counterclockwise to speed up the closing speed

Trench-free floor spring base panel is made of zinc alloy, and the base can be adjusted around
link:https://www.heinda-cn.com/floor-spring/concealed-floor-spring/concealed-floor-spring-for-wooden-doors.html