allen type socket screw
allen type socket screw
[新英汉石油技术词典]
allen type socket screw内六角螺钉
是什么意思，allen type socket screw的解释，allen type socket screw的翻译
[石油英汉词典] allen type socket screw
allen type socket screw
[新英汉石油技术词典]
allen type socket screw是什么意思，allen type socket screw的解释，allen type socket screw的翻译
[石油英汉词典] allen type socket screw