用angle iron造句子，“angle iron”造句

In the early twentieth Century, manufacturers used steel, angle iron and channel steel to build the superstructure of the greenhouse.

Angle iron bender apply vertical structure. It can bend inner and outer various angle iron. It also can roll round steel, pipe, square pipe, U steel by changing different roller.

Light-duty racks made of angle iron are beautifully designed and of good performance. Installed in the joining and inserting way, therefore easy to be disassembled.

Reply: : The folded plate reactors need support at the bottom. The support will take angle iron fixed with chemical anchor bolt.