half round head screw
[船舶英汉词典]
half round head screwn.半圆头螺丝
是什么意思,half round head screw的解释,half round head screw的翻译
[纺织英汉词典] half round head screw
half round head screw
[船舶英汉词典]
half round head screw是什么意思,half round head screw的解释,half round head screw的翻译
[纺织英汉词典] half round head screw