manufacturer's stamp

例句：

1. 1. The company usesa manufacturer's stamp to ensure theauthenticity of its products.
   该公司使用制造商的印章来确保其产品的真实性。
2. 2. Themanufacturer's stamp is usually found onthe packaging of their products.
   制造商的印章通常出现在他们产品的包装上。
3. 3. The manufacturer's stamp serves as a guarantee thatthe product has been inspected and approvedby the manufacturer.
   制造商的印章作为产品已经由制造商检查和批准的保证。