Sun-Maku was founded in Danglang, Dongguan, China as branch factory of Taiwan ChangYi metal factory, which has above 28 years' experience in manufacturing fasteners for building industry and metal constructions. Our factory covers a area of 4800 square meters and 120 staffs. We have established a solid foundation for providing screws for the building industry since 1978. While our core business and market focus continues to be in construction, our product offering has spread into other construction-related applications, including concrete fasteners, stainless steel screws, wood screws, unstandard screws, etc.

As an ISO 9001: 2000(E) certified manufacturer, all of our production lines are systematized. In case of meeting client's various demands, we can manufacture according to DIN, ANSI, JIS, ISO standards. We keep introducing advanced technology and modern equipments. Till now, we have won good reputation by offering the best quality and delivery on time in global market such as USA, European, Australia and Russia, etc.