Abstract: A fusion-bondable sheet is provided which is used as an overtape for covering a joint portion of a heat-shrinkable cover sheet applied onto a joint of steel pipe or cable and which is also used as a cover sheet for repairing a damaged protecting cover of a steel pipe. The fusion-bondable sheet comprises (a) a crosslinked polyolefin sheet, (b) a fusion-bondable layer formed on one surface of the crosslinked polyolefin sheet, which layer is mainly composed of a polyolefin having a melting point of 80.degree.-200.degree. C., a polyolefin having a melting point of 30.degree.-75.degree. C. and a tackifier, and (c) a flame-retardant sheet bonded to the other surface of the crosslinked polyolefin sheet through a binder or adhesive layer. Preferably, the flame-retardant sheet is larger in size than the crosslinked polyolefin sheet and the edges of the former sheet outwardly extend from the edges of the latter sheet.

Abstract: A wrapping film having a high wrapping workability and an excellent anti-hazing property comprises a composition comprising 100 parts by weight of polyethylene, a copolymer of 25% by weight or less of vinyl acetate with 75% by weight or more of ethylene or a mixture of two or more of the above-mentioned polymeric substances, 0.5 to 6 parts by weight of sorbitan monooleate and 0.5 to 6 parts by weight of a liquid paraffin having a dynamic viscosity of 30 to 80 centi-stokes at a temperature of 38.degree. C.