| 摘要 |
PCT No. PCT/BE90/00011 Sec. 371 Date Nov. 26, 1990 Sec. 102(e) Date Nov. 26, 1990 PCT Filed Mar. 15, 1990 PCT Pub. No. WO90/11467 PCT Pub. Date Oct. 4, 1990.A coupling for joining two tubes is manufactured of a material different from the material of the tubes. The coupling includes two parts, which can be coupled to each other. Each part includes a body with an axial bore for receiving an end of the tube. The bore has an inner wall including a ring. The ring is made of a material which can adhere to the material of the tube. Two tubes made of different material can thus be coupled and uncoupled.
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