ductile

• Microstructure analysis of low carbon ductile iron
  低碳球墨铸铁的显微组织分析
• Polyethylene encasement for ductile - iron pipe systems
  球墨铸铁管路系统用聚乙烯包装物
• Sg xuzhou pipelines : ductile cast - iron pipes
  圣戈班徐州铸管：球墨铸铁管道
• Optimal model of mechanical properties in ductile cast iron
  球墨铸铁机械性能的优化模型
• Ductile iron pipes - external zinc - spray coating
  球墨铸铁管外表面喷锌涂层
• Ductile iron pipe flanges and flanged fittings
  球墨铸铁管法兰和法兰配件
• Ductile - iron pipe , centrifugally cast , for water
  离心铸造的球墨铸铁水管
• 5k shipbuilding - spheroidal graphite iron ductile iron 5k angle valves
  造船.球型石墨铁
• Standard specification for ductile iron castings
  球墨铸铁件的标准规范
• Malleable iron pipe fitting ductile iron grooved fitting
  球铁沟槽管件