| 摘要 |
<p>The cylindrical tubular shell is esp. of GRP, epoxy resin or polyester resin, has a dia. of 10-20 cm. and wall thickness of 4-8 mm. Parts of the coaxial inner support assembly (esp. end cheeks) may also be of duroplastic material. Prod. is light-weight has low inertia and is used in textile machinery as compared to steel.</p> |
