... by vulcanizing the preliminary shaped airbag made of base rubber and reinforced fiber material. The material of the iron ... Mandrel airbag: It can substitute the wooden or steel mandrel used for pouring the hollow of large reinforced concrete structure. ... ,lifting ,airbag ,pontoon ,floating pontoon,salvage ,ship airbag fender, rubber airbag,Lifting Airbag,Upgrading Airbag ,airbag used as formwork in ...