1. Hardware: there are domestic brands and imported brands, which are common flat-open hardware and flat-open hardware. Different brands open in different ways, and the price of hardware they choose is also different.
2. The quotation method for the cost of cross beam, center pillar and waterproof glue is different from each manufacturer. Some merchants do not include it, and some do.
3. Glass: At present, the insulating glass used for broken bridge aluminum doors and windows varies according to different models. 5+ 12A+5 insulating glass is used for the 55 series of broken bridge aluminum, and 5+ 15A+5 insulating glass is used for the 60 series of broken bridge aluminum.
4. Unit price of broken-bridge aluminum doors and windows: According to the analysis of production cost and reasonable profit of the industry, the lowest ex-factory unit price of broken-bridge aluminum doors and windows is also around 450 yuan.
The general pricing method is as follows:
Fixed fan area × fixed fan unit price+open fan unit price = total price of doors and windows (open three square meters), and the excess part will be charged.