cross knurls 交叉滚花刀
knurl n. 球形突出物，脊状突出物；滚纹; n. 给……压上滚纹;
screw with straight-line knurls 直线滚花头螺钉
knurl wheel [机] 滚花轮
网络短语:
knurls 辊式拉边器; 滚花;
straight-line knurls 直线滚花
line knurls 直线滚花头螺钉
cross s knurls 交叉滚花刀
scre ith straight-line knurls 直线滚花头螺丝
screw with diamond knurls 金刚石滚花头螺钉
knurl screw 滚花螺杆