... , mixing drum, central venting and discharge units. 15tph Mobile Asphalt Drum Mixing Plant SLB-15 Model No.: SLB-15 Product Origin: China ... : 30 days Certification(s): ISO9001, ISO14001, OHSAS18000Rated productivity: 15tphMobile asphalt drum mixing plant is accurate in weighing, simple in structure, highly efficient ...