Highstrength carbon fibers give maximum stiffness but are also finer than most glass fibers and thus more difficult to infuse.
高强度的碳纤维具有最大刚度，但是比大多数玻璃纤维更为纤细，因此也更难灌注。
2
Bogie hearth resistance furnace bearing and susceptible to collision parts with highstrength refractory brick masonry, and the use of water glass during building the mud, so the strength increase.