We specialize in providing mechanical cleaning solution to clean pipeline using a series of pigs. This process involves running various types of pigs through the pipeline and monitoring the debris that comes out. Foam pigs, brush pigs, cup pigs, Bi-Di pigs with brushes, and other aggressive cleaning pigs are all commonly used in this process. Coupling two pigs together can also provid... http://www.graffintech.com/mechanical-cleaning-solutions.php