... HKUPS ,HKFEDEX ,HKTNT and international EMS express ,for the product weight under 100KG,we will choice DHL ,UPS ... 30 days , parts should be the same as we shipped you . And you should send us the testing report , If it ... be refused to be returned.We usually ship the buyer item as sample in a lower value ,in order ... to avoid the buyer’s tax, However ,the tax is ...