Screw truss
说明
铝合金四方圆形灯架有单边开、三角形及四边形，常用的有1米-8米的，根据圆的载重及形状大小，所用管材均有不同，结构分为：插销式和螺丝式两种，其他不规则可根据客户的要求定做。
Characteristic
Stands Quartet has unilateral shape,such as triangle and quadrilateral. Usually with diameters ranging from 1-8m,For the load and shape ofa circle, the siae of pipe will be varied.Structure is divided into:bolt and spigot-type.Other irregular shape can be tailored according to customes’ r requirements.
MinZhu