越南采购需求：氧化铝耐火砖，耐火砖

I'm looking for high alumina refractory bricks for our production line, specifically for building wall furnaces. The dimensions required are 75x45 or 50x70 mm, with an Al2O3 content of over 65%. These bricks will be used in ceramic tile production, where they will need to withstand temperatures up to 1600 degrees Celsius. Could you provide pricing, availability, and any relevant technical specifications? Looking forward to your response!