Patents
- The invention relates to a die-less forming process for a bellows pipe，CN201510273834.4，Zicheng Zhang ，2015
- The invention relates to a multistage method for refining and controlling the grain size of a metal pipe，CN201510316683.6，Zicheng Zhang ，2015
- The utility model relates to a cold-rolling forming equipment for special shaped pipes，CN201510443981.1，Zicheng Zhang ，2017
- The utility model relates to an automatic die drawing and predrawing equipment for a tube cold drawing machine，CN201510497918.6，Zicheng Zhang ，2015
- The invention relates to a continuous mouldless forming device and a method for metal bellows，CN201710211842.5，Zicheng Zhang ，2017
- Pneumatic micro deep drawing equipment and forming method for metal foil，CN201710303938.4，Zicheng Zhang ，2019
- The invention relates to a forming method and a device for a serpentine metal flat tube，CN201710600818.0，Zicheng Zhang ，2018
- The utility model relates to an auxiliary device for sample surface treatment，CN201910411216.X，Zicheng Zhang ，2020
- Rotary bending equipment for metal microtubes，CN201710509397.0，Zicheng Zhang ，2017
- The invention discloses a paper H profile forming equipment and a method thereof，CN201710805497.8，2019
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