The boxed fishing lines on the market are mainly nylon lines. Competitive fishing is very particular about the combination of lines, and the change of thickness is often carried out between addition and subtraction of 0.1 numbers. For example, according to the situation of fish in a game, the best line group is the 0.4th line and the 0.2th line. If you use the 0.2th line to increase the number, it is actually the 0.5th line. This combination will not work. To the expected effect, and the "downward pull" configuration where the sub-line is thicker than the large line will also cause the large line to cut.
When buying a fishing line, in addition to looking at the brand and label, you have to personally check the diameter and strength of the line. There is no special detection tool for anglers on the market, only the outer diameter micrometer and spring scale can be used for detection.
When testing the fishing line, first check the flatness, resilience and softness of the line body based on the feel. Observe whether the transparency of the wire body is consistent in the bright place, and then measure the diameter and tensile force of the wire. If the wire diameter and tensile force are not much different from the specified value of this label, the wire diameter does not exceed positive 10%, and the tensile force does not exceed negative 10%, this wire is still acceptable (there is no thinner than the label on the market, (A fishing line with a higher pulling force is sold).
When purchasing a fishing line, it is best to actually test its pulling force. The method is to pack the sand in a cloth bag, hang up the thread, and the weight of the sand when the thread is broken is the actual tensile force of the thread. Compare it with the calibrated standard to determine whether it is qualified. In addition, knead the thread into a ball, squeeze it with both hands, and release it to see if it can automatically recover in an instant. If it is quickly recovered without creases, it means that the thread is flexible. At the same time, we must also observe whether there are any bruises or looseness. If it is a colored flower, twist it by hand to see if it fades. After inspection, as long as you find signs of defective products, do not buy them.