不卡视频一区二区三区,婷婷成人av,国产精品一区视频,久久夜色精品国产噜噜av小说,国产精品性夜天天视频,亚洲日产永久经典,九九国产精品入口麻豆

Casus Products>> Casus

  The GSWRCH22A-1 is produced by XINGTAI STEEL which has the advantages of stable composition, low harmful elements, high purity and less surface defects. It can be used to make various kinds of medium and high strength self-drilling screws and fasteners. It shows that the product has good drawing performance and low cracking rate of cold heading by a fastener customer of XINGTAI STEEL.