... insulated pipe is made of NBR and PVC.It doesn't contain fibrous dust, benzaldehyde and chlorofluorocarbons.Moreover,it has low ... in cooling unit and equipment of central air conditioning, freezing water pipe ,condensing water pipe,air ducts ,hot-water pipe and so ... is to cut it,then glue it.Moreover,it doesn't have negtive influence of the performance of the insulated pipe ...