6902200000 Chinese tariffs HS code Refractory bricks and similar articles containing by weight more than 50% of alumina(Al2O3), of silica(SiO2)or of a mixture or compound of these products
Refractory bricks and similar articles containing by weight more than 50% of alumina(Al2O3), of silica(SiO2)or of a mixture or compound of these products