... calculate by Tongji University concrete pump schwing, concrete saw, self loading concrete mixer, The silos, silos, sheet silos, concrete mixing plant, asphalt mixing ... company has national patent in Bolted-type Silos (Patent NO: 201020649684.5). These kinds of powder silos enjoy high ... provide great advantages especially in transportation. For example, 2 units 100 tons bolted type cement silos can be ...