... heavy duty tipper 2.Driving type: 4x2, 4x4, 6x4,8x4 3.Engine:CNHTC 266hp 290hp,336hp,371hp 4.Good quality,the best p 6X4 heavy duty ... 300L Our main heavy duty truck products areas are:1. Howo tippers: Howo 4x2 tipper. Howo 6x4 tipper. Howo 8x4 tipper.2. Howo ... 4. Howo sewage suction tank: Howo 4x2, Howo 6x4.5. Howo concrete mixers: 8m3---12m3.6. Howo garbage trucks: 10m3---16m3. 6*4 heavy duty tipper ...