... stainless steel feeder 3,smooth driving,low noise Fertilizer Pellet Maker Main Technology Specification: Model SZLHf320SZLHf350SZLHf420SZLHf420SZLHf508 ... lubrication and reliable.According to the high viscosity fertilizer improved the twist dragon feeding method, ensures ... improved the compression ratio of bearing, enhanced the fertilizer characteristic of hard forming , increased the capacity ...