您好!有一客户出口环保PET(recycled PET)产品到中国,该产品英文描述为:15% glass-filled; 85% straight/ recycled PET. As IV is only measurable with straight PET,请问其税号应该是什么,另外HS Code 39076019 和 39076090都是指其他,这两个HS Code是否与产品的粘度有关?