... resistance. PU board and sheet can also be reprocessed into a variety of seals, buffer components, and other non-standard items ... , 300*300mm, 500*500mm, 1000*1000mmHardness shore A 25~981.1.1 ApplicationsMainly used as a spring and stamping tool to reducing the ... quality. PU board and sheet can also be reprocessed into a variety of seals, buffer components, and other non-standard items ...