B-to-B grade PET bottle washing line is mainly supported in the recycling project of food grade recycled PET chips; it has a high degree of automation and avoids the human error to the maximum extent. Efficient mixing and testing systems are to ensure that the PET flakes can meet the standard of the following processing. B-to-B grade bottle washing line of our company can flexibly adjust and configure the equipment and the process according to the actual differences in raw materials input to meet customer needs in actual production. The whole line adopts the industrial control computer, with touch screen interact with PLC for control, which can intuitively and effectively control the various process parameters while collecting and recording the important process parameters on the whole line; we even combine the remote communication technologies to let our customers have no distance with us.