The goal of balance and verticality in the front sub-frame is readily achievable with little effort.
这一目标的平衡和垂直度在前面的分帧是容易实现的很少的努力。
2
Remove the door sub-frame from the basic door frame.
从基本车门框架上拆下车门金属衬板。
3
Highly effective in terms of initial cost and general usability, the steel sub-frame floor systems creates a level and solid platform on which to base your event.