Rough Top Conveyor Belt muab phav phav tus ntiv tes hloov tau yooj yim los tuav cov khoom ntim khoom lossis cov khoom nqa tau nce lossis nqis qis rau qib siab tshaj plaws ntawm 35 degrees.Rough Sab saum toj Conveyor Belt yog muaj nrog cov roj hmab dub thiab tawv tawv