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Frictioning frictioning, is used to strip screen printing process, generally known as the squeegee. Most of the PU material, according to the screen printing substrate characteristics, printing pattern precision and printing of different can choose different hardness with different shapes of sections of scraping. Frictioning hardness refers to the hardness of the surface. Often to shore hardness said, there are: 55 degrees, 60 degrees, 65 degrees, 70 degrees, 75 degrees, 80 degrees, 85 degrees. Several shapes are generally rectangular, sharp and arc-shaped etc.. Detailed specifications are: 50*9mm, 55*9mm, 45*9mm, 50*7