色戒时长完整版,亚洲国产一区二区三区精品,久久久久久久精彩视频,怡红院av亚洲一区二区三区h,艳情五月,国产亚洲成av人在线观看导航,男女午夜免费视频

Casus Products>> Casus

  The 42CrMo produced by XINGTAI STEEL has characteristics of stable chemical composition, low percentage of harmful elements, high purity, slight decarburisation, good surface quality. It is generally used to produce high strength fasteners of grades 10.9 and 12.9. A customer of XINGTAI STEEL used this steel to produce the ball pin for automobiles. The customer reflected that the product had high strength, low cracking rate in cold heading and met the requirements of the product.