Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods, other than those of siliceous fossil meals or similar siliceous earths.
耐火砖、块、瓦及类似耐火陶瓷建材制品，但硅质化石粉及类似硅土制的除外。
Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods, other than those of siliceous fossil meals or similar siliceous earths.
耐火砖、块、瓦及类似耐火陶瓷建材制品，但硅质化石粉及类似硅土制的除外。
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