We are a professional manufacturer and developer for NDT ( non-destructive testing ) in China , founded in 2006 , and we have been engaged in the field for many years , and there are lots of customers and distributors belongs to us all over the world . \ DELLON\ has already been a well-known international brand in the field of NDT . Our products are very popular in Europe, America and Asia , and there are some customers in Middle-East and Africa , too .