步 1: Exhaust gas purification The flue gas exported from the electric furnace passes through the fume hood, main flue gas pipeline, cools down through
Silica Fume is often used as cement or concrete admixture in the construction industry, which can fill the pores between cement particles and effectively improve
耐火材料分为两类, 一种是固定材质，一种是不定材质, 浇注料是指不定形耐火材料
