combined certificate of value and origin

例句：

1. 1.The company issued a combined certificate of valueand origin to the buyer to verify itsauthenticity.
   该公司向买方颁发了价值和原产地联合证明书，以验证其真实性。
2. 2. The governmenthas introduced a new policy thatrequires businesses to provide a combined certificateof value and origin for all importedgoods.
   政府推出了一项新政策，要求所有进口商品都必须提供价值和原产地联合证明书。
3. 3. The seller insisted on providing acombined certificate of value and origin as proofof the authenticity of the product.
   卖家坚持要求提供价值和原产地联合证明书作为产品真实性的证明。