ferritizing anneal造句

• Optimum ductility is obtained with a ferritic matrix , therefore , all nibco ' s ductile iron pressure containing parts are treated with a ferritizing annealing cycle
  通过铁素体基体可获得最佳的展延性，因此，所有美国尼伯科球墨铸铁的压力负载部件都经过铁素体化退火周期的工艺处理。