After product and price confirmation, you can require for samples to check our quality. the samples are free and will be ready for delivery in 3-5 days. The samples will be sent to you via express and arrive in 3-5 workdays. You can use your own express account or prepay us if you do not have an account. 2,Can you do the design for us? Yes. we are a perfessional manufacturer who can provide you OEM service. 3, What about the lead time for mass production? It depends on the order quantity and the season you place the order. Generally speaking, We suggest that you start inquiry two months before the date you would like to get the products at your country. 4,What's the material of the tube? Our raw materials are purchased from the famous companies. (1)American DuPont (2)Janpanese Daikin (3)Excellent quality of Chinese brands 5,Why choose us? (1)We have more than 10 years of experience in this industry and export! (2)Technical support- We have one group of technical team which can develop and design the product according to the requirements of customers! (3) We have a professional sales team can provide excellent service for you! 6,What is your payment term? T/TWestem Union,MoneyGramand Paypal.This is negotiable 7,What is the shipping method? It could be shipped by sea,by air or byexpress(EMSUPSDHLTNTFEDEX and ect).Please confirm with us before placing orders. 8, How do you make our business long-term and good relationship? (1) We keep good quality and competitive price to ensure our customers benefit; (2)We respect every customer as our friend and we sincerely do business and make friends with them,no matter where they come from..