The imitated stainless steel decorative listel is made of foamed PVC , and hot pressed filmed surface.

●仿不锈钢的基材是由PVC发泡而成，表面采用热烫印膜。

With project instance, this paper introduced the calculation procedure and method about lofting and designing the tunnel stringcourse with sweeping matrix vertical curve.

结合工程实例,介绍了大半径竖曲巷道放样设计的计算步骤和方法。