... used for moving various large prefabricated reinforced-concrete products (such as caisson, box culvert, and bridge), oil drilling equipment and ... reinforced concrete structure.5.Container airbag:It can be used as the gas or liquid storage and transport container.Standard specifications ... fender, rubber airbag,Lifting Airbag,Upgrading Airbag ,airbag used as formwork in construction of pipe culverts