| 摘要 |
A fastening structure for tubular apparatus includes a transfer tube element fixedly fastened to the top end of a first tube member having one end formed a first collar section by extrusion, and a second tube member having one end tapered to form a first neck section matching the first collar section. The second tube member further extends from the first neck section to form a free end coupling section with an anchor plug fixedly engaging therein. The transfer tube element is fastened to a sealing element through engaging a fastener with the anchor plug thereby to form a secured and sightly fastening among the first and second tube member and the transfer tube element.
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