2assemble the grille ceiling in advance on the floor ; 3mount each grille ceiling assembled on the suspended hook of the iron wire 3将预装好的每份格栅天花装在铁线吊钩上将跺钩穿进主骨孔内
2.
3lift up the ceiling assembled thread the iron wire to the hole of main carrrier 4proceed to level adjustment after paving all ceiling tiling squares 3将预装好后的格栅天花吊起铁线穿在主骨孔内
