I would not recommend www.aliexpress.com or/and www.alibaba.com. There is a lot of run around with both of those sites. I would look for a factory overseas that can help you get a high-quality bottle. How do you connect with someone? You can do a simple google search to start out and start digging from there. Or you need to work with someone who has worked with these factories in the past. I have overseas connections from working with clients in the past. Its a lot of digging annd networking, but worth it in the long run.