For Guangdong, the towns of Zhangcha in Foshan, Shaxi in Zhongshan, Humen in Dongguan and Yuanzhou in Huizhou cannot be bypassed. The tradition of making knitted fabrics in Zhangcha, the ancestral temple in Foshan is quite old, and the price of workers is acceptable, close to Bubi, so there are many people making fabrics and T-shirts there (such as Anthony, who is famous for making mercerized cotton).
Shaxi, a famous knitting town in China, also has many long-term OEM brands (some of them also make their own brands, for example, Hu Xia Shijia's factory is called China T-shirt City). Humen used to be the first clothing town in China, with a batch of pure clothing and several factories. Yuanzhou knits a lot, mainly to make T-shirts.
Guangzhou's business is slightly more famous than clothing, mainly because of the high labor cost and high rent. When I grow up, I will move away, because Guangzhou is everywhere except the old district like Yuexiu. Panyu has a large area, many garment factories and many small factories in Nansha, not to mention Haizhu, which is so close to Zhong Da's fabric industry.