Shall correspond to control sample, approved in accordance with the established procedure. Pores, which can be seen by eyes, are not allowed. Plastic shall no burn at stop of worm extruder for a period of 20 minutes. For production of internal sheaths for wires and cables by extrusion method. Use of VO material results in decrease of economic expenses during production of cable products. Specific peculiarity of this plastic is absence of adhesion to materials of insulation and sheath. |