词语round head screw
解释半圆头螺钉
词性名词
round head screw〔名词〕圆头螺钉详细»
round head screw圆头螺钉详细»
半圆头螺钉button headed screw;cup head screw;half round screws详细»
半圆头螺钉button headed screw;half round screws详细»
半圆头螺钉cup head screw详细»