日韩欧美在线视频免费,黄色国产91,欧美日韩亚洲国产,最近中文字幕在线,性高爱久久久久久久久,亚洲精品午夜不卡,一区二区三区福利视频

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.