From inner to outside, the composite pipe consisted of alumina ceramic layer, metal transition layer, white cast layer, carbon atom diffusion layer and nodular cast iron layer.

复合管从里到外由氧化铝陶瓷层、金属过渡层、白口铸铁层、碳原子扩散层、球墨铸铁层组成。

youdao

Through wet processing technology, aluminium salts and alumina can be produced from the kaolinite, and the residues from above process can be used to prepare calcium silicate, white carbon, and etc.

如采用湿法处理工艺可生产铝盐及氧化铝，并可利用生产铝盐制品的残渣生产硅酸钠、白炭黑等产品，高岭土还可加碱合成多种沸石产品。

youdao

During 18 years of trails and hardships, Jinbo has put up 8 wholly-owned white fused alumina production lines, 3 mullite production lines and 2 magnesia alumina spinel production lines.

在18年的风雨历程之中，金渤按计划陆续投产了8条全资白刚玉生产线、3条莫来石生产线、2条镁铝尖晶石生产线。

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The company purchases huge volumes of earths (like brown and white fused alumina), which are their raw material manufacturing inputs.

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