half-round head screw的意思|示意

半圆头螺钉 round head machellone screw 圆头呆板螺丝 half-round head screw 半圆头螺钉 ; 半圆头螺丝 brass round head wood screw 黄铜元头木螺丝 ; 黄铜圆头木螺丝 ..

半圆头螺丝 round head machellone screw 圆头呆板螺丝 half-round head screw 半圆头螺钉 ; 半圆头螺丝 brass round head wood screw 黄铜元头木螺丝 ; 黄铜圆头木螺丝 ..