... China.After collect all the goods,we issue invoice to you.Payment from you by T/T, Westunion, PaypalProvide tracking number of UPS ... suppliers A,B,C,D,E , you want to check all the samples then made decision Normally you paid every suppliers sample fee and ... samplesWe mark different supplier goods/take photo/make report to you in order you can differentiateWe send samples with DHL/UPS/FEDEX/TNT ...