... polythylene material one-time injection molding,acld and alkali restance ,corrosion resistance,easy to clean ... than two times.3 the barrel body ,box and bottom,can withstand all kinds of spcial ... other ,convenient transprotation,utmost to save space and cost.6 widely applicable to various environment ... property,sanitation,factories,etc.yellow,blue,green,and red color selection of ash .7 including ...