Masnesium composite materials(including all sorts of structural parts and articles and Pre-formed parts, tensile strength reinforced materials＞7.62×14m and specific modulus bigger than 3.18×17m) 镁金属基复合材料(包括各种结构件和制品、各种预成形件，其中增强材料的比拉伸强度大于7.62×104m和比模量大于3.18×106m),
