Yinan Machinery (Shenzhen) Co., Ltd., the former South Machinery (HK) Ltd., has had the history of more than 30 years in specialized production of all kinds of bronze and special C-alloy screws, with its product quality recognized and welcomed by clients worldwide. Its export volume of copper screws has ranked the first continuously for years among the enterprises in HK of the same industry. With the constant development and expansion, it moved its production base from HK to Shenzhen in the Chinese Mainland in 1992. As the strong-to-strong combination is an inexorable trend for the industrialized development, the company set up Yinan Non-ferrous Metal Profiles Plant, Nanhai jointly with the former Pingzhou Non-ferrous Metal Profiles Plant, Nanhai, Guangdong in 1997, to greatly develop the product range and quality. It has expanded its production scale from the specialized production of single metal screws to the integrated production from raw materials to products, further guaranteed the product quality and raw material supply, made the products of stronger competitive force in the world market, and powerfully ens