half round head square neck bolt
[航空英汉词典]
half round head square neck boltn.半贺头方颈螺栓
是什么意思,half round head square neck bolt的解释,half round head square neck bolt的翻译
[进出口英汉词典] half round head square neck bolt
half round head square neck bolt
[航空英汉词典]
half round head square neck bolt是什么意思,half round head square neck bolt的解释,half round head square neck bolt的翻译
[进出口英汉词典] half round head square neck bolt