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Preparation method of quality control sample for analyzing copper content of chemical components of blister copper and anode copper
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Device for detecting concentricity of rotating shaft of equipment
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Mining industry side drop shaft well head safety seal device
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Multifunctional rock core collecting and arranging groove for geological drilling
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Mining shaft tower hoist control room protector
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Condensed water treatment equipment
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Method for digging and repairing furnace arch of silver molten pool smelting furnace
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Method for drilling blast holes in hard rock and blasting by using blast holes
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Method for recovering zinc metal by using regenerated zinc oxide
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Conductive bar base for measuring electrode current of aqueous solution electrolytic cell
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Oil tank cold distribution pipeline method
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Process for inhibiting cobalt and cadmium redissolution in zinc hydrometallurgy purification process
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Method for deep purification and cadmium and cobalt removal of supernatant in zinc hydrometallurgy
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Deep purification method for zinc, cadmium and cobalt by wet smelting
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Method for recovering zinc and cadmium from waste alkaline residues
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A method of smelting waste acid separation and Extraction copper bismuth heavy metal
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It is a kind of for handling the technique of arsenic-containing waste water
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A kind of method that furnace production is burnt in fluidized bed furnace blow-on
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The model of solid-drawn hemispherical dome and its method for drawing hemispherical dome
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A kind of method that silver copper oxygen enriched molten bath smelting furnace produces high scum
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