The asphalt mixing plant always used 450g aramid filter bag .Our company always choose the best aramid fiber imported from Nomex fiber Dupont USA and conex fiber TeiJin Japan . Now our company is the exclusive agency of Conex fiber TeiiJin Japan and the best cooperation of Nomex fiber Dupont USA . For the asphalt mixing plant, we has more than 25 years experience and become the leading manufacturer in this plant .