亚洲天天骚女现场视频,www.888日本,亚洲第一天堂无码专区日韩,免费一级黄片视频在线观看无码,亚洲日韩线精品一区一区一区,一级无码日韩毛片,国产免费美女被艹视频

The wire 50BV30 for hand tools obtained the quality certificate of Gold Cup Quality Products for Metallurgical Products
  Updatetime:2019-05-05 Hits:

  Recently, China Iron and Steel Industry Association held the 2019 annual meeting on brand cultivation of iron and steel industry. During the meeting, the metallurgical products which meet the requirements in brand cultivation of metallurgical products and reach the international level of similar products were named as “Gold Cup Quality Products for Metallurgical Products”. The φ22-40mm wire 50BV30 for hand tools of our company obtained the quality certificate of Gold Cup Quality Products for Metallurgical Products.

  The wire 50BV30 is a common material used in the production of automobiles, bicycles, motorcycles and various socket wrenches for construction machinery. It has the characteristics of steady chemical composition, low inclusion and gas content, good structure uniformity and good surface quality. This kind of wire shared 50% of domestic market.