Umbrella supply

Which region has more umbrella manufacturing factories
Where the umbrella factory produces umbrellas of good quality

When it comes to umbrellas, I don't know which city will come to mind, and we may recall some memories of umbrellas, whether they are good or cruel, but they are all in the past. When it comes to umbrella manufacturers, we will think of which city, if there are only a few umbrella manufacturers that must not be too large scale, this is the inevitable result, only the city has a large number of umbrella manufacturers to make money from umbrellas, before you think of large-scale production and sales, in order to attract more customers.