1, Leather sewing position testing machine testing machine, leather sofa, sofa testing machine for testing sofa fabric sewing position dynamic fatigue resistance. A sewing position containing samples fixed in a sample containing the elastic foam pad seat fixed on both sides, with a fixed weight of the rubber surface can freely rotate the wheel from the continuous impact height of specimen surface the number until set, check whether there is damage to the specimen.
2, Leather sewing position testing machine testing machine, leather sofa, leather sofa testing machine, sewing position fatigue testing machine is suitable for testing sofa fabric sewing position dynamic fatigue resistance.

ASTM D4033