Wherefore, this machine barrel possesses characters like high strength, wearresistant, and strong anticorrosion.
因此，该机筒具有高强度、高耐磨、高耐蚀等特性。
2
The technology was originally discovered by Alcan international-now Rio Tinto alcan-and Norsk Hydro of Norway, while developing wear-resistant aluminum products.
Result of the engine platform test showed that the valve had excellent air-tightness and wear-resistant properties, so could successfully satisfy requirements of the engine.