James Liu - YouTube- Portable Hand Push Road Crack Sealing Machine FGF-60 ,One of Roadsky customers recently contract a road marking project. The road marking equipment they use are all from Roadsky. Roadsky took a video of the entire project process.Concrete Road Sealing Machine Concrete - ggbearings.co.inFGF-60 Portable Road Crack Sealing Machine is the first line of the pavement maintenance program. Done properly it can add 5-7 years or more to a pavements lifecycle. Used for the concrete and asphalt road crack filling.