一提到绿卡，人们往往想到那些想在外国长期居留的人士。其实，不仅仅他们需要绿卡，商品也需要拥有绿卡，尤其是一些出口商品，除有产品质量合格证、出口许可证以外，还需要一种特别的证明书，即环境标志，也被称作“环境绿卡”。面对“绿色壁垒”的无奈简单地说，环境标... When one mentions the green card, people often think of those who want to stay in foreign countries for a long time. In fact, not only do they need green cards, they also need to have green cards, especially some export commodities. In addition to product quality certification and export licenses, they also need a special certificate, that is, an environmental label, also called “ Environmental Green Card.“ In the face of ”green barriers" helplessly, environmental standards ...