Dear Sir. This is Dongkuk RNS in Korea. We are one of major refractory company in Korea. We have a business with POSCO, Hyundai Steel, Dongkuk Steel and So on. We are looking for Dead Burned Magnesite 90% 0-15mm If you do, Could you introduce your product. and spec. the qty 400~500 month , If you are interesting our company,Best regards.