Our former type of sleeve anchor used to cooperate with most influential brand around the world. When time goes by, JOKER Anchor came out with a more better design SLEEVE Anchor to our end users. 

For more than 25 years improving, this joker style sleeve anchor is getting more and more manufacturer to copy its characteristic, With special design patent sleeve, end user could easily twist and install the anchor without a drop of sweat. In addition, owing to the patent code inside the sleeve, JOKER's sleeve anchor would make sure that the sleeve would perfectly expanded inside every kind of cracked and uncracked concrete.