1. Alibaba: Alibaba hosts a large variety of Chinese manufacturers and suppliers including window and door hardware accessories. You can contact manufacturers directly and confirm their credibility by checking the reviews and ratings.
2. Made-in-China: Made-in-China is another platform dedicated to Chinese suppliers and buyers around the globe. It has a variety of manufacturers for window and door hardware accessories.
3. Trade Fairs or Expos: Trade fairs/expos like Interzum Guangzhou, Canton Fair, and others have stalls for numerous manufacturers. You can contact them directly at these events.
4. Global Sources: Global Sources specializes in connecting suppliers and manufacturers from China with buyers around the world. You can look up manufacturers of door and window hardware accessories on their platform.
5. Direct contact: If you can speak Chinese, or employ a translator, consider reaching out directly to factories or companies in China. You could use an online directory like 1688.com (the Chinese version of Alibaba) to find companies and their contact information.
6. Import/Export Agents or Sourcing Companies: You can also contact a reliable sourcing agent or company that is expert in finding suitable manufacturers for your business.
7. B2B portals: Websites like EC21, DHgate, etc. also host a sizeable number of Chinese manufacturers.
Remember to always verify the manufacturer’s credibility, get samples before placing a large order, and use secure payment methods to avoid fraud.