... into hexagonal shap-e. They run contin Machine name: Semi-automatic thread rolling machine Machine Model:Z28-200Machine parameters:1, the ... :1,useZ28-200 steel bar straight thread rolling machine, the master of this machine for crumbs rolling processing a variety ... and HRB400 steel.3, the structureZ28-200 reinforced straight thread rolling machine, from the rack, the clamping tongs, rail, skateboard ...