已经有次观看 wencong在2014-09-16发布

Channel：Tungsten 标签： Tungsten  carbon  steel,  Tungsten  carbon  steel  frame 

简介：Tungsten carbide steel, the raw material is an upgraded version of TR90 and TR90 which is more than the original properties are substantially lighter, more flexible, higher degree of hardness is equivalent to known than HYDRAT, lighter than paper, harder than the steel deified title.