... , volume small, easy transport, be convenient of loading & unloading, higher efficient and higher safety.3) ... loading & unloading, save cost, save time.5)Food grade & High safety FDA, EC, HACCP, ISO9001 2000, 1) Top Loading &Discharging 2) Bottom Loading ... &Discharging3) Top loading &Bottom Discharging Polyethylene Film for Flexitank