How to use square pipe punching machine to punch FRP square pipes?
2020-05-06
The square tube punching machine uses the square tube punching die to punch the square tube. However, in the actual operation process, it is not appropriate to use the square tube punching machine mold to punch the square GRP tube, because the square GRP tube is different from steel and is composed of glass fiber, reinforcing agent and resin. It is easy to avoid, fracture and galling when punching the square GRP pipe. Therefore, the square tube shall be punched
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