We are the manufacturer of the FLEXI TANK in China. Flexi Tank is the best solution for the liquid products transportation.And It can save up 40% transportation cost for you comparing with DRUM, BARREL, ISO TANK and IBC. So it would be the best substitute to the other packing type. Any further info pls visit our web: bpfflexitanks If any your interesting pls let me know at :jacky()bpfflexitanks()com. or SKYPE:jacky761104 . thanks.