凹型钢系列组件是国际八十年代初期发展起来的拼装列架加固结构，在国外通讯设备安装中得到了广泛的应用。我国在近几年来随着国外通讯设备的引进，也大量开始采用这一列架方式。我公司是最早开发试制的企业，现已能提供全套组件，凹型钢系列与组件的主要特点：45号凹型钢系列承载力50×50×5角钢基本相同外，还具以下特点。
1.用钢量远小于角钢。
2.列架过程中可做到不打孔，大量节省劳动力。
3.组合形式可以根据需要灵活多变。
4.列架可采用通用件现场组装，外形美观。
Concave type steel assembly is the new-type reinforcement for splicing row.It is widely used in the installation of communication equipments at aboard,Following the introduction of equipments,this mode is adoped I our country in recent years,The company can provide the whole complete sets of assembly at present. The main feature of concave steel series & assembly is the bearing capacity-No.45 concave steel is basically the same as 50×50×5 angle steel.Other features:
1.The amount of using steel is far less than that of angle steel.
2.In the course of spicing row,it is able accomplish without perforare,to save a great deal of labor.
3.The form of combination can be changed freely.
4.Splicing row can be assembled on the spot.
