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JPH08143923A
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Apparatus for producing pig iron using self-reducible ore block as main raw material and production of pig iron
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JPH06228603A
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Raw iron powder for sintered metal and its production
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JPH0660985A
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Illumination control system
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JPH03232901A
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Die for forming and manufacture thereof
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JPH0448065A
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Uniform boron pack cementation method
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JPH03140456A
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Method for cooling metal treated with molten salt containing alkali metal salt
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JPH03140455A
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Method for cleaning metallic product treated with molten salt
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JPH03140454A
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Method for recovering and regenerating boronizing treating agent
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JPH03138348A
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Method for prolonging life of crucible for melting of fused salt essentially consisting of alkaline metal salt
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JPH03138347A
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Method for uniform diffusion penetration of boron to metal surface
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JPH01225765A
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Cutting tool having boron penetration layer
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JPH01219153A
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Machine parts made of oxidation-and heat-resisting cast iron and its production
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JPH01168851A
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Wear-resistant machine parts and its manufacture
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JPS61104013A
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Method for recovering iron contained in molten steel slag
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JPS5956944A
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Production of cast iron casting
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JPS58136705A
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Manufacture of foundary pig iron by blowing sio2 or substance containing sio2 from tuyere of blast furnace
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JPS589961A
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Pig iron as starting material for manufacturing cv cast iron casting and manufacture of cv cast iron casting using it
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JPS589910A
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Production of raw material iron for cast iron of high toughness
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JPS57198241A
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Pig iron as starting material for manufacturing cv cast iron casting and manufacture of cv cast iron casting using it
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JPS57169007A
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Production of iron containing copper
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