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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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Galvanized steel pipe with pipe diameter greater than 100mm should be connected with flange or sleeve special pipe fitting.
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Due to the blooming of household appliances, there are many kinds of surface treatment methods used in galvanized sheets, and the requirements for performance a···
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Color steel roof waterproof problem has always been the design and construction personnel pay more attention to the problem.
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