| 摘要 |
The pipe has a textile reinforcement presented in a form of a knit fabric (3) which is formed of two threads (10,12) having different rigidities so as to form mixed knots (5) with a rigid thread (10) and a less rigid thread (12) in contact with each other. The thread (10) is made of aromatic polyamide e.g. polyparaphenylene terephtalamide, and the thread (12) is made of aliphatic or aromatic polyamide e.g. polyamide 6.6 or copolymer of polyparaphenylene terephtalamide and 3, 4`-oxydiphenylene terephthalamide. |
