| 摘要 |
A multi-function pipe(100) is provided to save manufacturing cost and to prevent corrosion by including an inner pipe made of rubber or synthetic resin. A multi-function pipe(100) includes: an outer pipe(10) made of stainless steel; and an inner pipe(20) made of rubber or synthetic resin. The outer pipe and the inner pipe are formed integrally with each other. The multi-function pipes are connected with each other by a bushing. Packing materials are mounted on both sides of the bushing.
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