... all of them.Welcome to attach Purchase / Factory BOM PaymentT/T (Bank Transfer) , Western Union , Money Gram , Escrow , Paypal , ... items)If there is any quality problem (defective / don't work) of the goods, it could be returned within ... 0KG) (10 - 30 days) About CHANZON (Service) We specialize in electronic components (Diodes, Integrated Circuits (IC), Filters, Oscillators, Rectifiers, Resonators, ...