欧洲精品乱码久久久久蜜桃,72式性无遮挡在线观看视频,夜夜操夜夜干,一区二区三区在线免费观看,色91av,欧美激情片一区二区,91cn国产在线

Casus Products>> Casus

  GML08Al-B belongs to low carbon cold heading steel, it is mainly used to produce standard parts below grade 4.8 and all kinds of non-standard parts. The products have the advantages of stable composition, low harmful elements, high purity of steel and stable cold heading performance. A customer of XINGTAI STEEL use this product to produce special-shaped nuts for air conditioning, feedback the product quality stability, meet the use requirements.