... . XF series of slurry seal machine include XF80 and XF100. The machine is made by Xugong Road Construction Machinery Co., ... asphalt, additive, and etc. are automatically controlled by a switch.•Automatic time-delay control: the user can set up ... .•Reliable performance, simple operation.Paving System: •Three kinds of paving box: hydraulic stepless telescopic type, mechanical lengthened type, and ...