WHY CHOOSE IISDOO ？
Being a distributor of IISDOO brand:
While IISDOO first became known for door handles, we have evolved in response to market trends into a premium brand for interior door hardware. Our product line has expanded from handles and locks to include 3D adjustable hinges, hydraulic concealed hinges, and door stops. Applications now extend beyond wooden doors to aluminum-wood and narrow-frame glass doors. This growth enables IISDOO partners to profit not only from wooden door hardware, but also through collaboration with glass and aluminum-wood door manufacturers.
Product co-development with IISDOO:
Thanks to its mature R&D team—including appearance designers, structural engineers, and process engineers—IISDOO continues to launch innovative products into the market. On average, we introduce 2-3 new products each year to maintain strong competitiveness. We consistently gather market feedback around our best-selling products and carry out optimizations to enhance the customer experience. When serving aluminum-wood or glass door manufacturers, IISDOO partners may require customized solutions and technical support. With our in-house R&D team, we provide timely and professional assistance, empowering our dealers to serve their customers better.
Hinge Factory
With approximately 100 employees and covering an area of about 8,000 square meters, our hinge factory is equipped with production machinery including 4 die-casting machines and 15 polishing machines. It has an annual production capacity of roughly 2 million 3D adjustable concealed hinges, all compliant with the EN1935 standard.
Lock Factory
Our lock facility employs around 130 staff and spans approximately 10,000 square meters. The factory operates with 12 die-casting machines, 10 polishing machines, 8 automated polishing systems, and 10 stamping presses. It achieves an annual output of 1 million lock sets, meeting the EN1906 product standard.
In addition to continuous product optimization, the rapid growth of a brand also relies on sustained marketing efforts. Whether through consistent production, showroom support, or promotional assistance, IISDOO remains dedicated to supporting its distributors. Only when our distributors achieve long-term market leadership and sustainable development can IISDOO firmly establish itself in a highly competitive industry.
