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。
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.
立面的材料很坚固，低层使用砖石，玻璃和金属用于包层，上面是黑锌和自然氧化铝。
The materiality of the facade is substantial with masonry used at low levels and glass and metal cladding, black zinc and natural anodised aluminium above.
我厂所制备的氧化铬、氧化铝陶瓷涂层和碳化钨金属涂层有着耐磨损、耐腐蚀、耐高温等优良性能。
I plant of the chromium oxide, alumina ceramic coating and has a tungsten carbide metal-resistant coating wear, corrosion resistance, high temperature, and other fine performance.
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