Flexitank/bag for petrolum 1.16,000-24,000 liters capacity 2.4 layers PE+1 layer PP 3. 2 or 3 inch valve 4. EC,FDA,COA,ISO flexitank/flexibag for petrolum products HENGXIN flexitank5 layers:4 *food grade PE+1*PPCapacity:14000-24000LHENGXIN flexitank composition4 food grade polyethylene1 outer strong PP polypropylene2’&3’butterfly valveFlange combined stainless steel and green plasticHENGXIN ...