About us:<DIV style="PADDING-BOTTOM: 10px; PADDING-TOP: 10px; PADDING-LEFT: 10px; PADDING-RIGHT: 10px">High-density polyethylene materials of more than 0.94g/? are created if, after giving an AL2O3 catalyst to the high-density polyethylene, we give heavy pressure of around 15~150 pressure in the temperature of 200~250?, and we improved </DIV>