Established in 2003, Zhongshan Xiaolan Duole Hardware Products Factory is located in Xiaolan Town, which is well-known as Hardware Products Base in China. We specialize in door, window and furniture hardware, such as Peephole ,hinges, handles, door stoppers and other accessories. We combine traditional and modern technology together in architectural hardware. Our 10,000sqm workshop can provide thousands of hardware products per month. In terms of quality, we manufacture according to ANSI standard and our products are well accepted by our European and American clients. We have 5 engineers in R&D Department and OEM&ODM services are provided. Competitive prices, good quality and timely delivery are available. Our company is special in making door viewers (also called door peepholes) and dust protectors. In a hand, we have targeted specific tailor-made automated machinery, it can control dimensional tolerance range of plus or minus about 5cc ,which goes far beyond its own industry and product requirements of the machine plus or minus 10cc technology standards .In the other hand , these is a industrial-level assembly of the dust-free workshop. So ,we have good installation environment ,which is surpass the same industry standards , to make partner (three of the famous hardware companies are already be our client ,which are famous in our country in hardware) feel at ease to order ,at the same time ,we are also keep our mind on producing . .