double skin oil tank

This kind of doubleskin oil tank are made of two layers--the steelinner layerand the fibreglass outerlayer which make small interstice between two layers, adapting the most advanced technique of FRP which belongs to STI,automatically and helically weldingbodymaking line and double-tank exterior coating ,etc. It features with security,environmental protection,economy, quality,easy and standard installation; it is has been widely used by PetroChina,Sinopec,Shell,Total.