... deformation grip 3.Criteria: ASTM,EN, DIN, yarn testing instrument yarn testing instrument is widely used to test tension , ... bending , etc.in the field of metal ,rubber ,plastic ,nylon ,leather ,shoemaking ,fabric ,insulator ,electric appliance,automobile ,etc.And ... testing date, time, maximum, average and minimum value. yarn testing instrumentThe main technical parameters are as follows:Capacity:50 ...