In 2011,an Indian company bought two sets of DYQN3000P1 belt filter press for the purpose of treating coal slurry, As requested by the customer, our technical engineers tested these machines in their factory, and one week of  trainning course on how to operate the machine was also delivered. According to customer's feedback,our dewatering machines work very well till now,and this customer also introduces our product to his friends in this field.