大同行（dtcash.com）提供安全、有保障的互联网投资理财服务。大同行专注易变现的动产质押，1元起投，0手续费，随时存取，专业机构100%本息保障，第三方资金托管，保障资金安全。
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The Diamond Trading Company (DTC) is the rough diamond sales and distribution arm of the De Beers Family of Companies and is the world's largest supplier of rough diamonds, handling approximately 40% of the world's supply by value.
