This customer is a contractor in Verde Cape and has many projects in different areas. So, it is a big cost for him to employ many workers to repair the road cracks. Therefore, he searched on the internet to find an alternative. Finally, he came to our product which can save the cost of road repair. In the past time, for a projects, he needed approximate THREE workers to do the job. But now, only ONE workers are enough. It is really save his cost and working time.