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Forging method of low-temperature-resistant forging for petrochemical industry
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It a kind of internal combustion engine high temperature resistant low nickel stainless steel ring and its rolles over and pricks forming method
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Natural gas transportation flange assembly
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High temperature resistant flange
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A kind of magnetic-type rough-turning clamp of the black skin positioning of large thin-wall flange
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Alloy steel for large wind-driven power generation device and manufacturing process of workpiece made of same
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