Penelitian untuk mengetahui kualitas sol karet transparan sepatu kanvas untuk olah raga

Research to know quality rubber sole translucent kanvas shoes sport to keep in conditioning room during 2 (two) month, agree with survey result than attitude test: tensile strength, elongation, permanent set 50% and hardness agree strength properties reference more homogeny, permanent set 50% and hardness to experience reduction properties because elasticity to decrease until can bring about forceful measure of surface. Sole which influence activity more advanced, whereas elongation not change properties during to keep, then time to keep good are ? - 11/2 month.