s 1 set, as our product is machinery equipment, it’s difficult to send you samples, however,we can send you catalog, warmly welcome you to come visit our company.2. How can i get the after-service?A: We will send you the spare parts by free if the problems caused by us.If it is the men-made problems,we also send the spare parts,however it is charged. Any problem, you can call us directly.3.How can i trust your company?A:With 10-years-professional design, we can provide you suitable suggestion a