| 摘要 |
A pipe comprises an inner part which is more particularly intended for abrasion and corrosion resistance, and a peripheral part intended, in particular, to give it mechanical strength. The inner part is made from a synthetic resin reinforced with a filler of a material whose MOHS hardness is equal to at least 7 and having a wide particle-size spectrum in order to take up a very high percentage of the volume provided, the quantity of resin being low but sufficient to surround virtually each particle and to unite the whole.
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