1.Are you a manufacturer?Of course, Jiangxi Great Superhard Materials Co., Ltd. is an industry and trade company with an area of 5000 square meters. It is a professional manufacturer of diamond tools and has its own independent R & D team. We have the ability to provide you with all types of products you like.2.Can you provide samples?Certainly,we can provide you the samples you need,but we do not provide the free samples and express fee. However, when we get amount order from you,then we will return you the samples fee.3.Where is your company located?The company is located at the foot of Lushan Mountain in Jiujiang City, Jiangxi Province.Highway intersection and logistics park are near the company, the traffic is very convenient. 4. How about your delivery time? Our stock products can send to you within 5-7 days, the customized products after confirm the requirements can be ship out within15-30 days.