This paper shall be eligible only for the inspection of commodities prior to their export which is therefore called preliminary inspection 此单仅用于申请出口商品的预先检验，称出口的预验。
2.
Preferably have blood tests before vaccinated . only people who have never been exposed to hepatitis b should be vaccination 接受乙型肝炎预防疫苗之前，应该预先检验血液，只有从未被乙型肝炎感染过的人，才需要接受疫苗注射。
