使用双船拖网捕捞鳕和其他圆体鱼类是丹麦西海岸HvideSande港船长的特长。为了在非常粗糙的海底拖网作业,丹麦渔具供应公司HSV(Hvide Sande Vodbinderi ApS)研制出一种新型滚轮高口拖网。这一新设计的特点是底网片小于上网片,上网片约占40％,以防过于贴底,沉纲延伸到浮纲的长度,沉纲用钢链或钢丝绳 The use of double-trawling Codfish and other round fishes is a specialty of the captain of the Hvide Sande harbor on the west coast of Denmark. In order to trawl the rough ocean bottom, Danish fishing tackle supply company Hvide Sande Vodbinderi ApS developed a new roller high-mouth trawler. The new design is characterized by the bottom of the net is less than the Internet, the Internet about 40% of the film, so as to prevent too sticky bottom, Shen Gang extends to the length of the levitation class, Shen Gang with a steel chain or wire rope