his mail is from CNBM International Corporation, China. China National Building Material Group Corporation (CNBM) is a state-owned enterprise in charge of administrative affairs in building material industry. We offer a wide range of diamond tools in a vast of specification. For example, Diamond core bit for granite, marble, stone, glass and ceramics; Segments include solder; diamond saw. And if you need other related product, we also could supply. Consequent, I could provide a lower price and good quality to you. If you have intentions to cooperate, please send product information and specification you demand to me as soon as possible. Then, I will quote to you immediately. Also, If you have any questions please do not hesitate to ask. I am waiting for your feedback.