Elongated bodies made from high tenacity polyolefin fibers are provided that are useful as fishing lines, and processes for making the lines. Fibers having tenacities of at least 39 g/denier are braided and fused together to form braided bodies having very small diameters.本發明提供可用作釣魚線的由高韌度之聚烯烴纖維製造之伸長主體及用於製造該等線之程序。將具有至少39g/丹尼之韌度之纖維編織且熔合在一起以形成具有極小直徑之經編織主體。