How much is an aluminum balcony in Chengdu?

5+9A+5 are two pieces of 5mm glass with a 9mm aluminum strip in the middle. Almost every square meter of aluminum costs 120~. But also finished the production. Transportation. Installation. Warranty. Take the common material of 1.2 as an example. It needs at least 300 yuan per square meter, which is estimated to be the worst material with a thickness of 1.0. That material can be used as a window even if it is difficult.