SJ-42 shrinkage machine product在秒 characteristics: 兒請This machine be鐘弟longs to non-cutting processing 用物equipment. It uses hydraulic technolog要舊y to send the shrinka店器ge parts such as round 話南steel and thread steel in上雨to special dies 她東for cold compressi對的on forming. The density of sh去生rinkage parts can be 房鐘greatly increased, thereby i影什mproving the tensi火醫le strength of mat雪就erials. The defect of reducing 問少tensile force and impact to也錯ughness due to window peeling玩厭 is solved. With the 舞火characteristics of fast p月妹rocessing speed and accurate 刀笑size, it is an ideal equipment for proc又會essing Mine bolts and ground angle b計水olts.