Shell-Line is the mobile handset device developing and manufacturing company in Korea founded on March 2001. We designed and developed the semi-automatic slide handset for the first time in the world. This novelty module applied on Samsung Anycall for the first time.   Continuously, we devised the reinforced engineering plastic hinge structure which is metal inserts contained by method of injection molding system. Within this technology, we invented the hidden type monolithic sliding hinge module after contributing lots of research and development. Shell-Line's these technologies actualized shorter assembly process and made mobile handsets slimmer with durability.   For the result ,these innovative technology and unique hinge mechanism have applied on most of Samsung mobile handset and brought them huge amount of cost and process reductions so far.   Besides semi-automatic slide hinge module, our products are folder type, swing type and other functional hinge modules. By continuous design development and innovative technology of manufacturing system, Shell-Line has took strong competitive position over any other companies.   Lastly, Shell-Line is growing company focusing on every hinge mechanism application such as portable multimedia devices, camera, and etc with continuous investment and preliminary design development.