A 20L pail drum made from linerboard having a function of iron pail was developed for fine-particles. Since the raw material has been changed from iron to the paper, they can be manufactured inexpensively than the iron pails and they are very hygienic because of solved concerns of rust or peeled paint. In addition, they are equipped with handles like steel pails, very convenient for carrying.
Thanks to their flat top and double structure of paper rings of the bottom, they can be stacked stable.