Čelična hrpaas a type of supporting structure, it has high strength, light weight, good water insulation, long service life, high safety, low space requirements, environmental protection effect and other characteristics, but also has the function of disaster relief, coupled with simple construction , kratak period, za višekratnu upotrebu, niski troškovi izgradnje i tako dalje, pa je upotreba čelične hrpe lima prilično široka