... flexitanks 1.4ply PE film+1ply Tubular PP+3"Valve 2.Insurance 3.HACCP,ISO,FDA,EC,HALAL,KOSHER LAF ... Flexitank - so higher payloads possible5.No cleaning cost ,no disposal cost6.No demurrage cost7.No return loads needed8.No need for forklift to load or ... temperature change Bonnet design Prevent spillage and keep the valve cleanMetal frame bulkheadLessen impact to flexitank remarkably during transit ...