“Power Plus Line” is CAL’s strategic new trimmer line which is very much superior in durability & in smashing power thanks to a variety of compounded 2nd material. All of the used ingredients have got the substantial hardness for grinding & for polishing of the objects. After the study of long period of time seeking for the most appropriate size & mixture ratio of each ingredients along with the repeated trials of a variety of substance and a variety of conditions at extrusion, we could materialize this unique trimmer line.