Which family in Nanchang is good for balcony sealing? How much is the general fee?

There is a good shop in Nanchang called Omega Doors and Windows. It depends on what materials are used. There are aluminum alloys and plastic ones. The price of aluminum alloy is about 150 yuan, and that of plastic is cheaper. Just ask in the market and see if there is a balcony monopoly in your community, otherwise it will be more expensive.