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JPH09301766A
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Porous spinel clinker and its production
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JPH07126080A
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Production of light-weight sintered alumina clinker
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JPH0639281A
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Catalyst for metal-contaminated heavy oil and fluid catalytic cracking method using the same
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JPH0624728A
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Production of cristobalite
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JPH061675A
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Manufacture of insulating fire-resisting sintered compact
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JPH05339048A
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Spinel periclase type clinker having excellent slaking resistance
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JPH05329373A
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Catalyst for metal-contaminated oil and fluidized contact decomposition using the same
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JPH0647586A
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Jig and method for supporting welding backing strip and solid flux for such jig
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JPH0466295A
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Magnetic composite refractory solid flux with magnetic shielding cover
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JPH0466296A
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Supporting jig for welding flux
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JPH0419015A
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Hand tap guide jig
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JPH0446699A
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Steel patch and its adhesion method
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JPH02290697A
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Refractory solid flux and production thereof
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