越南采购需求：氧化铝耐火砖，耐火砖

I'm looking to source high alumina refractory bricks with a minimum aluminum oxide (Al2O3) content exceeding 50%. The dimensions I need are 230mm in length, 60mm in width, and 114mm in height. It's critical that the bricks meet industrial quality standards suitable for high-temperature applications. Please provide detailed specifications, including thermal conductivity, compressive strength, and any applicable certifications. Additionally, I would appreciate information on lead times, minimum order quantities, and pricing options. Looking forward to your prompt response so we can potentially move forward with this procurement.