Details

This instrument is used to detect the leather, synthetic material or other surface material, folded back and forth through a flexible resistance, and also for the determination of the test GB/T20991-2007, 6.6.3.1 of the water vapor permeability test kind of pre-fold resistance to torsion testing machine to test according to 100 ± 3 beats per minute, to complete the degree in scratch-resistant surface material folded back and forth in the 22.5 ° angle. The instrument is applicable to leather uppers and thin leather (leather for clothing, handbags with leather bag with leather material, etc.) resistance to flexure test