Before the installation, first measure the level, measure the level with a professional spirit level, the level generally can not exceed 2mm. Second, after testing the level, welded the stainless steel bracket fixture on the steel frame of the balcony, between the pieces of card The spacing is 500mm. Third, the next step is to install the stainless steel bracket, it must be firmly installed, otherwise it will directly affect the quality. 4. After the brackets are installed, there will be welded seams at the joints between the two brackets. To use a grinding and polishing machine, the treated surface is very beautiful.