which is the best place to purchase raw silk in china. sichuan or zhejiang province?

Hi, both Sichuan and Zhejiang produce a large amount of raw silk each year, so either can be your option. However, I don't know a company or factory with it. Sorry for this.

The best way from Guangzhou to both cities is direct flight. Besides, high speed trains also connect between, but it takes much more time than flight.