座砖：吹氩座砖是与底吹氩透气砖同步开发的配套高新技术产品，吹氩座砖和水口座砖应根据冶炼工艺情况及钢包使用寿命的不同进行合理选择。 Argon-blown well block is a supportive new and high technology product devloped simultaneously with bottom blown argon vent brick. Argon-blown well block and nozzles block should be selected rationally in light of the metallurgical technology and service life of steel ladle.