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Show Silver Threads These threads will not be woven into the gossamer of dreams, but into the very sinews of industry and production. pro-duction. They are filaments of fiberglass used to reinforce giant plastic cylinders, up to 23 feet in diameter. They are made by Arelco Plastic Fabricating Company, part of Research -Co ttrell, Inc., by winding resin-impregnated fiberglass around and around to form cylinders which can be used as chimney chim-ney liners, pipes, and tanks as well as in other applications. |