The utility model discloses a sowing barrel with an inner air extractor pulled by a bearing which is mounted on a gas pipe axle connected with an air pump.
本实用新型公开了一种内置气吸式播种滚筒，它由轴承带动转 动。
The utility model discloses a sowing barrel with an inner air extractor pulled by a bearing which is mounted on a gas pipe axle connected with an air pump.
本实用新型公开了一种内置气吸式播种滚筒，它由轴承带动转 动。
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