The company national expert, Professor Yang, Shandong University, with life by the multi-national Invention active elements (Re, Ca, Mg, Al, Si, K / Na ...) modifier technology relies on the production of steel castings and international standards of quality performance: toughness, good uniformity, good pressure processing, processing, and can be welded, such as Cr12, Cr12MV, die for 3m / m stainless steel stamping, 15 million times from time to repair mode, 6542 high-speed Steel can be used for 150m / m Hob manufacturing, quenching does not produce any defects in the steel forging change is good, cheap. (more>>)