Dear Friend: 1. If you can't find the product you need, please don't leave immediately, because not all of our products are displayed in our AliExpress store, please contact us and we will reply within 24 hours. 2. If you don't know which model is suitable for your project, please contact us, we will reply within 24 hours. 3. If you are interested in our products and want to know more, but there is no purchase requirement at present, please contact us, we will update our new products for you. 4. Because the price of raw materials and exchange rate change frequently, and our products are constantly upgrading, the product price is not regarded as the final transaction price, please contact us for the latest product information and price. Sincerely hope that I can provide you with satisfactory products and services, come and contact me! Mobile: +86 18711146837 Whatsapp: +86 18711146837 WeChat: +86 18711146837