| http://www.w3.org/ns/prov#value | - In addition, for the preparation of the electroconductive support 11, there may be provided on a cylindrical support material an electroconductive layer in such a manner that a heat-shrinkable tubing prepared by adding the above-mentioned electroconductive particles to a material such as polyvinyl chloride, polypropylene, polyester, polystyrene, polyvinylidene chloride, polyethylene, chlorinated r
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