I'm a student in Vietnam ,I want to have a 30T horiztal cement silo for my studing , but i'm so far. I have spend 3 months to search it, but i can't find out it, please send me some file about it, dimension? size? material? How to disign it? and sketchs if you can. it's just document, catalogue. Thank you so much. I hope you can help me!^^. Have a nice day and lucky!