In other states where by we don't acquire product sales tax, it could be the customer's duty to guarantee that every one correct state use taxes are paid. K?t Qu? X? S? K?t Qu? X? S? Mi?n Nam K?t Qu? X? S? Mi?n Trung K?t Qu? X? S? Mi?n B?c KQXS Các T?nh KQXS ?i?n Toán X? s?