The "San Jiang Duo Industrial Co., Ltd. "was established in 1984 at changhua city of taiwan by the president mr. Tong liu shen, the san jiang duo machining and production all kinds of parts about meatl snap hook, machinery. In 1987 the san jiang duo enlarge the factory to expend the business, except production all kinds of material and parts of metal snap hook, pulley.

The san jiang duo further to manufacture and production. Metal snap hook, triangle hook, turning hook, pulley; moreover. The san jiang duo also increase machinery equipment for mass production to advance san jing duo's position in this area is stronger and earn praise; therewithal, the san jiang duo open up the foreign market and get into the innovation of automation, that make the output of products are achieve in a higher efficiency, and to accelerate the steps of enterprise intemationalization; afterwards, the san jiang duo had developed and production the line operation series products to show the san jiang duo's specialize field in the area of metal snap hook, strive for thoroughness in enterpries management in perpetual and strengthen the capability of competition

Concepts of business management
1 innovation: New products, new technique, new knowledge and new business management concepts
2 quality: The hope of customers must to remember, works as a team and strive to customers satisfactorily
3 service: Delivery on time, best quality, maintain the rights of customers, accept customers complain; accomplish a purpose as the best satisfaction of customers.
4 efficiency: San jiang duo ask for sales, manufacture and management departments are to possess a higher efficiency, and strengthen the capability of competition in the international market
5 perpetual management: Management in perpetual as san jiang duo's mision, let the team, customers and suppliers are growing up in a steadiest condition