The purpose of the expansion screw is to fix the light boxbase and the concrete pier below.
膨胀螺丝用途是将灯箱底座与其下面的水泥方墩固定。
2
In this paper the design and manufacture procedure of. The drawing die for the helmet boxbase in AG50C motor is introduced.
本文介绍了AG50C摩托车头盔箱底板拉伸模的设计与制造过程。
3
"If you have moved house, you know how much time is wasted constructing the base of the box before you can put anything in it, and it's even worse on a factory assembly line," he says.