?半圆头螺钉

... button head rivet半圆头铆钉 button head screw半圆头螺钉 button switch按钮头式开关 ...

?圆头螺钉

圆头螺钉(button head screw), 此释义来源于网络辞典。

?扁圆头螺钉

... button head 扁圆头; 半圆头 收藏 button head screw 圆头螺钉; 半圆头螺钉; 扁圆头螺钉 收藏 raised countersunk head screw 半沉头螺钉 收藏 ...