Abstract: A magnetic recording medium such as a magnetic tape, which comprises a base film, a magnetic layer having an elastic modulus at 1% elongation of not less than 1,200 kg/mm.sup.2 totally in both longitudinal and width directions which is higher than that of the base film, said magnetic layer being formed on one surface of the base film, and a backcoat layer having an elastic modulus at 1% elongation of not less than 1,200 kg/mm.sup.2 totally in both longitudinal and width directions which is higher than that of the base film, said backcoat layer being formed on another surface of the base film, said magnetic recording medium having a total thickness of not more than 17.mu., said magnetic recording medium having excellent mechanical strength and being used without buckle and injury during usage even in a thin thickness.

Abstract: A muffler mounting apparatus in a construction vehicle comprising a vehicle body, an engine mounted on the vehicle body, a muffler connected to an exhaust port of the engine to reduce the noise level of exhaust gas, a pair of supporting levers to support the muffler, one end of the supporting levers being pivotally connected to the vehicle body and, a pair of linkages pivotally connected between the engine and the muffler supporting levers, whereby a vibration caused by the engine can be absorbed by combined operation of the supporting levers and the linkages.