Is it okay to just change the surface of the billboard and leave the frame intact?
壹、What is the unit price of a welded billboard shelf?
If it is a large-scale outdoor inkjet advertisement, it is usually made of polycloth + truss, which is usually around 40 per linear meter. Of course it is not very good. ; Then there are the columns, such as real estate, that kind of shelf costs more than 200 per square meter; indoors are generally trusses, and there are others such as pull-net display racks, which are calculated based on the area of the display rack.