亚洲国产精品99久久久久久久久,乱伦家庭AV,国产精品美女久久久久AV电影,亚美欧AV

Casus Products>> Casus

  The 16MnCr5 produced by XINGTAI STEEL is a kind of case hardening steel.which can obtain hard and wear-resistant surface structure and good plastic and toughness core structure through appropriate production process. A customer uses our 16MnCr5 to produce engine valve tappet, who reflects that our product has good dimensional accuracy, stable composition, and low cracking rate during cold heading.