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Patent Certificate
A patent for a wardrobe hook.
A new type of aquarium patent.
A new type of integrated activation furnace patent.
A new type of refractory brick patent.
A type of activated carbon water mill for extracting gold.
A patent for a biomass gasification furnace heating system with four parallel furnaces.
A patent for a biomass energy power generation system.
A patent for a biomass combustible gas filter tank.
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