The high shrink ratio TF31 of Permits to shrink-large diameter differences. Only six sizes cover cable Diameters from 1mm to 33mm, so did a reduced procurement costs and reduced space requirement results. TF31 is so Characterized by good fire-protection properties and is UL . approved RV1 . The rolls of 30m are particularly suitable for the average needs Type: TF31-9/3 item: 30 MTR