镁,钙,铬含量>50%的耐火砖及类似品
Refractory bricks and similar articles containing by weight, singly or together, more than 50% of the elements Mg, Ca or Cr, expressed as MgO, CaO or Cr2O3
无需监管证件
无需检验检疫
6902100000999
税则数据更新至 2026-11,以海关最新公告为准。