It depends on the HS code your forwarder uses to declare the goods. Different products use different HS code the tariff varies according to the HS code used. And it is your local custom that determines if that HS code used is appropriate or not. If deemed not, you will be forced to use the ones suggested and more often than not, suggested HS code will cause higher tariff. This is why it is very important to define the right HS code with your forwarder before any importation begins so you can have a better control on your landed price.