请问：其中的HT or MB or DB-MB signs 和ISPM 15 standarts是什么意思？
在加拿大 以下是信用证中的一条单据要求： Beneficiary's written declaration stating that the goods have been delivered with wooden packaging material which is marked with HT or MB or DB-MB signs that confirm ISPM 15 standarts. 请问：其...华人论坛