SJ-50 shrinkage ma紙司chine product characteristics: This ma舞那chine belongs to non輛快-cutting processing equipmen問道t. It uses hydra錯車ulic technology to send the sh唱電rinkage parts such as ro頻下und steel and thread steel into聽廠 special dies for cold compression 話湖forming. The density of shrinkage parts房西 can be greatly increased, th月醫ereby improving th刀樹e tensile strength of mat司會erials. The defect of re科樹ducing tensile force唱話 and impact toughness due to window唱火 peeling is solved. With the characte劇微ristics of fast processin月就g speed and accurate size, 農光it is an ideal equipmen一嗎t for processing Mine bolts and gr微河ound angle bolts.