buttress thread form 锯齿形螺纹 ; 锯齿形罗纹

buttress thread [机] 锯齿螺纹 ; 斜方螺纹 ; 偏直三角螺纹 ; 偏梯形螺纹

buttress thread screw 斜梯形纹螺钉

self-centering buttress thread 自动找中的梯形螺纹

buttress casing thread 偏梯形套管螺纹

buttress screw-thread [机] 锯齿螺纹

screw buttress thread 锯齿形螺钉

centering buttress thread 自动找中的梯形螺纹

buttress screw thread 锯齿形螺纹