Polyurethane Elastomer Scraper 1)high anti-impact, light weighted 2)variable hardness and abrasion resistant, 3) highly durab Polyurethane Elastomer Scraper 1)This ia a kind of polyurethane porous foam with high plasticity,2)it is structurally divided into the high density surface layer and low density core part, which are shaped simultaneously in one operation.3)it is high anti-impact, light ...