... , smut, mildew etc. light impurities Gravity table Introduction: 1, This Blow Type Specific Gravity Cleaning Machine is to produce proportion segregation ... to remove blighted seed, budding seed, damaged seed (by insect), rotten seed, deteriorated seed, moldy seed, non-viable seed, seed with black powder sick and seed with shell ... right of vibration surface; the stone can be separated. Gravity table