1.Are you a manufacturer or trading company? We are a 25 years manufacturer. 2.How to prove your quality? We use E6 diamond,Dipea steel wire, passed ISO9001 and SGS,strict quality control and skilled workers. 3.What should I do if the products is not suitable for the market? Giving us the detailed report first,then we analyze the reason,try to find the solutions. If it is our problems,we will give you new products. 4.Do you provide free samples? Small sample is welcomed.But,usually we don't provide free samples. 5.Can you provide OEM/OEM services? It is ok.
6.Any question about diamond frankfurt grinding block for marble,please kindly let me know!Thanks!