Looking for a good aluminum electrolytic capacitor manufacturer is a very hard work. It requires high product quality standards, low product price standards and all kinds of services to keep up. At present, no aluminum electrolytic capacitor manufacturer has been able to do it. The big ones dont take small customers seriously. The quality of low price is not at ease. The key is that the pre-sales and after-sales services are not very satisfactory to me. At present, only Shenzhen kaiqijia Technology Co., Ltd. has done better in three aspects. I hope they will continue to do better.