久久精品日韩AV无码-亚洲色欲综合一区二区三区-国产爆乳无码视频在线观看-欧美三级在线播放-四虎国产精品永久在线国在线

HOME|EMAIL|中文版

Product

Hotline
+86-13666785839
+86-13813661369

ADD:68 Shengli Road, Chunjiang Town, Xinbei District, Changzhou
EMAILczfstn@163.com

News

location:Home >> News

  • How to take out a broken screw? Six tips for taking out a broken screw 1. First, remove the sludge on the surface of the broken screw and head, use the center punch to kill the center punch of the cross section, then use the electric drill to install the drill with a diameter of 6-8mm, drill… 2019-03-05 13:10:53
  • How to deal with screw aging and corrosion In the process of transportation, screws and zinc coating often appear white, black, black and other phenomena, mainly caused by zinc coating, corrosive medium and exposure of moisture, oxygen and carbon dioxide in the at… 2019-03-05 13:10:25
  • Stainless steel knowledge summary, look at this one is enough! 1. Definition of stainless steelStainless steel is a kind of high alloy steel that can resist corrosion. It has a beautiful surface and does not need to go through surface treatment such as plating color or paint. Therefo… 2019-03-05 13:09:55
  • Great action makes great progress in hardware Introduction: the rapid development of hardware industry has not only made great achievements in the world's hardware industry, but also "forged" the huge gap between domestic enterprises with long-term polarize… 2019-03-05 13:09:12
Home　　Products　　About　　Equipments　　Cases　　News　　Contact　

Copyright ? 2019 Changzhou FSTN City Connaught Hardware Co., Ltd. All Rights Reserved.

Powered by: