A Please contact us and let us know the details, we will help you find out the problems and deal with it. If it is proved that the problem is caused by the product quality , we will make compensation for clients or replacement will be done immediately.

A Surely, we accept it. Including different size, color, package etc. And We also can mark your own logo and brand on the goods.

A We don’t offer free samples, according to our many years experience, the clients cherish the products paid. But we are willing to give our potential customers a special discount which they are used to do a testing. 

A We are professional manufacturer in supplying diamond tools for more than 20 years. Our diamond tools are in good quality and competitive in price. We suggest you make a trial order, then you will know the quality.