DRS low temerature heat-shrikable tubes are new high-tech products. The have good physical and chemical performance such as corrosion-resistance and insulate and flam-resistance. They are new materials for the power and com munication projects. They apply in the insulate of the cable and terminal and connector, protection and mark, linear components used in the power system, insulated protection of the terminal and connector and handing the conduct wire of the soft cable. As only heat gun can shrink them, they are easily used.