... no environment and season limited, no cost of inland , volume small, easy transport, be convenient of loading & unloading, higher efficient and higher ... load more than 44% than metal bucket, save lots of material cost, and also easy operated installing, less expenses, less ... one 20ft container, easy handling loading & unloading, save cost, save time.5)Food grade & High safety FDA, EC, HACCP, ISO9001 ...