剥肋滚轧直螺纹
Rib-stripped Rolling Straight Thread
花键轴冷滚轧
Spline shaft cold rolling
滚轧直螺纹钢筋连接
rolled parallel thread splicing of rebar
滚轧直螺纹钢筋
rolled parallel thread splicing of rebar
滚轧直螺纹
rolled circular screw joint
滚轧直柄钻头
roll-forged straight shank drill
滚轧型材与螺纹模具
profile and thread rolling die
钢筋滚轧直螺纹连接
the thread rolling bar connection
钢筋等强度剥肋滚轧直螺纹连接
stripping-rib rolling straight threaded connection
钢筋剥肋滚轧直螺纹连接
deformed bar connection through rib removing