1. Is your company a factory or trading company ? We are factorywas and founded in 1999. 2. Can we pay by L/C or others ? Yes ,you can make the payment by T/T , l/C etc. 3. What is your delivery time ? The delivery depends on different machines with different configurations. Please contact us to confirm it is in stock or not. 4. Do you have CE certificate? Yes , we have CE certification, machine quality is guaranteed. 5. What is the warranty period ? The warranty period is general 13 monthes after B/L date. During the warranty period, we will provide free replacement parts which are easy damaged. 6. Can you send the service engineer to our company ? When the machine arrive the destination, we timely send service engineers to install machine according to buyer's schedule, the buyer shall bear all expenses.