... have good seal capability and environmental friendly.Application range:Screw conveyor is widely used in various industries, such as building ... , coal, grain and other industries, for horizontal or inclined conveyor dust, granular materials and small block, such as coal, ... 705451455.52.1GX500*10m3-707984.4747.53.2Henan Tankuang Machinery Co., Ltd. is a enterprise that mainly produces large and medium ...