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Carbon-manganese composite microalloyed steel for engineering machinery and preparation method thereof
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Electric furnace continuous casting short process production method of oil well pipe billets
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Continuous casting tundish hollow particle carbon-free covering agent and preparation method thereof
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Automatic matching monitoring method and apparatus
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Baffle for special-shaped blank continuous casting machine tundish and preparation method thereof
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A kind of steel for high-strength weather-proof low-alloy electric force bar and preparation method thereof
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Method for rolling thick specification low-alloy structure steel plate by using middle and thin plate blank
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Boron-containing steel and preparation method thereof
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Oxygen-enriched sintering technique
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Oxygen supply device for oxygen-enriched sintering
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Method and device for recycling residual heat of blast furnace low-temperature recirculated water with heat pump technology
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High-strength antifatigue steel products and method for manufacturing same
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Weather-resistant hot rolled narrow steel strip and method for manufacturing same
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A kind of rust-proof device for rod bar
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Rust-proofing method for steel bar
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Molten iron pot narrow gap gas-blowing slag-removing device and operation technique thereof
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Method for producing synthetic ammonia by utilizing metallurgic waste gas
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Continuous casting and rolling productive technology for figured steel
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