Springs could be made from a variety of elastic materials, the most common being spring steel, we have variety machines which can produce springs with different sizes, materials, extension and toques per your requests.
If there is any need, please feel free to share your drawings or samples with us, we will evaluate and get you back as soon as possible.
Looking for Agents
We are looking for district agents and dealers, for our hot items, you're welcome to apply for if you have certain confidence and determination.Read More
6 Series SLIDEback sliding door closer
D&D's 6 Series SLIDEback sliding door closer is a semi-automatic style door closer. When the door is opened, the self-closing feature can make the door closed automatically, the smooth closing...Read More
Glass Patch Lock set with mechanical latch for interior door
Our glass patch lock PLI-10LR series applies for the fascinating frameless glass doors and it is a simple and elegant lever handle lock set for frameless glass door in the private environment....Read More