How To Pay Custom Duties in pakistan and how much percent tax?

i want to shop from amazon.com and amazon.uk i can buy easly from theme but my question is that how i can pay custom duty in pakistan? iam living in hyderabad then how i can pay custom duties other tax to custom officer?

How much percent custom duties other Tax on these products?

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any oher

http://pakcustoms.org/pakistan_customs_tariff/

this link should answer all your questions