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The thickness of galvanized steel plate is selected in the processing workshop according to the material list of the air pipe made, and the galvanized steel p···
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You can spray paint directly, but you need to spray special primer first, and then spray top paint.
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The installation height of the fence is also an aspect related to the safety of use; The height of the column of the highway guardrail network basically determi···
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H-shape steel perfect advantages
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Relatively speaking, the use of the fence is very wide, road, highway next to the protective belt, we also use it as a fence; And the security measures of airpo···
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