SM50 Pilling Grading Photographs of woven fabrics (woven only)
马丁代尔起毛球评级样照 (woven only)
符合标准：use with IWS TM-196 / ASTM D4970/ BS EN ISO ;
includes Twill/white background, Twill/black background Blanket & Plain Weave.
原装规格：Set of 4 x 5, total (20 pcs)
产地：美国