1.It is commonly used to support the water supply & drainage pipeline，gas pipeline，and heat pipeline, etc, in utility tunnel. 

2.The main arm is composed of hot-rolled steel tank and I-beam, which improves the carrying capacity of the main arm and can fix the pipeline of high bearing load demand.

3.The main arm of corbel has continuous triangular tooth structure，fixing the  pipeline system by dedicated lock latch，to achieve a good impact resistance，anti-sliding and other properties as a whole.

4.The welding process of main arm and base plate strictly confirms to welding standard of GB 50661. The welding joint has high bearing capacity and stable quality. The wall thickness of main arm is no less than 3mm..

5.No need to weld，just tightening the screws to fix the corbel.

6.Corbel adopts hot-dip galvanization surface treatment. The coating thickness and quality conform to the provisions of standard GB/T 13912.