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As a kind of revolutionary metal protection material, the Zn-Al-Mg coated steel has become the upgraded substitute of traditional zinc-plating material due to its excellent corrosion resistance, self-repairing capability and good processing performance. In this paper, it is systematically overviewed the research status, market analysis, technological progress and development trends of Zn-Al-Mg coated steel at home and abroad. Firstly, it is emphatically analyzed the progress of such key technologies as the composition design, performance optimization, mechanism of corrosion resistance, life model, technological breakthrough of welding and processing as well as environment friendly surface treatment technologies. Secondly, the application status of Zn-Al-Mg coated steel in such fields as photovoltaic industry, automobile and construction is discussed as well as future development trends towards high strength, light weight, environmental protection and intelligentization are proposed aiming at such challenges facing by the industry as non-uniform technical standards and cost pressure. Finally, the suggestions on healthy development of Zn-Al-Mg coated steel industry in our country are put forward.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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