| 摘要 |
PCT No. PCT/FR87/00501 Sec. 371 Date Oct. 15, 1988 Sec. 102(e) Date Oct. 15, 1988 PCT Filed Dec. 15, 1987 PCT Pub. No. WO88/04606 PCT Pub. Date Jun. 30, 1988.A cylindrical product, such as a hollow tube or solid rod, is subjected to a series of manufacturing processes. The cylindrical product is moved longitudinally through a sequence of stages, each stage having an opening through which the cylindrical product passes. The plurality of stages are arranged in a series to perform a specific rheological process. Each stage includes means for applying a preselected temperature, pressure, and vibration to the cylindrical product.
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