introduce

High temperature resistant telescopic protective sleeve can be used for high temperature protection and ventilation of the screw, light bars, columns, mandrel and other circular rotating cylinder. Play the role of soft connection. Can be used horizontally or vertically. The level recommended using plastic or aluminum support ring, to maintain a certain uniform distance between the shield cavity with the screw rod, prolonging the service life. Stretching length can be in each compromise with metal ring, improve the stability of shield. The connection or the fixing end usually uses the metal flange plate, also may choose the sleeve hoop type.