<正>Qingdao,an economic hub and tourist resort in East China’s Shandong province,has become a living paradise for foreign experts to live and work.It was ranke
The influences of trace alloying elements niobium, vanadium and zirconium on the corrosive resistance of 18-8 type cast stainless steel have been studied in det
The mechanical properties of reinforcing bar steel microalloyed with vanadium and nitrogen (known as V-N steel) and its microstructures were studied. The result