PS PLATE Compatible with Most Standard Positive Plate Processors High quality photo sensitive High press run PS PLATES-1-1 Offset Printing PS PlateCountry of Origin:China (mainland) ... 4.5USDThickness: 0.15 to 0.30mmPS plate, PS, offset printing, printing plate, positive plate, PS format printing plate, plate, developing compound, PE and PS sheet Electrochemical-grained with a hard anodic layer ...