Requirements for painting and welding
Painting requirements Rust, scale, grease, dust, soil, salt and dirt must be removed from the surface of all steel parts
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sheet metal brackets
Process benchmarks of sheet metal products should be followed for assembly
According to the specified technical requirements, the process of matching and connecting parts or components to make them into semi-finished
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What is surface treatment?Why should surface treatment be carried out?
1)What is surface treatment? Surface treatment: change the shape, chemical composition and organizational structure of the product surface and near
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