A: Type in"brass mortice lock China", you will find the top 10 manufacturers on google.com. Their success in SEO may also be a result of the excellent technology. Their tech excellence might also be implemented in developing products. After the manufacturer develops their particular engineering, their product quality and functionality is completely controlled themselves. This is a good guarantee to the company partners and merchandise users. When the company fails to develop its own technology, it may just be a processor. It's expected to process branded products and to stick to the criteria under the manufacturer. This is a way to stand firm on the marketplace.
