... .Global flexitank service 3.approved byFDA, EC, Kosher 1)4 layer PE+1 layer PP 2)3 Inch Valve 3)$5M liability/pollution ... insurance 4)COA,FDA,KOSHER,ISO22000Flexitank is the one-trip package ... Layers PE ( food grade 4 layers*0.125mm or 2 layers*0.35mm)2) 1 Outer Layer PP (210g with high tensile ...