- Themostsignificantfieldsaretobacco,paper,wolfram,camphor,farmimplementsandfertilizers(suchaslime).Thecopper,lead,zincwolframandmolybdenummultimetaldepositinsongjiangisamiddle-sizedburiedskarndeposit."Tungsten(orwolfram):Metallicchemicalelement,oneof...
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