It is made by the punching machine.
The fixing socket is made of seamless steel tube or seamful steel tube.
The stainless steel SS 304/316 can be supplied.
The White/Yollow Zinc Plated and H. D. G are avariable.
It is used in the concrete precast place together with the lifting socket and the pin anchor.
The special style and size can be made as customers' sketches or the samples.