Square plate Ming frame of smallpox of aluminous gusset plate within the scope of 0.4 to 1.0 mm aluminium plate thickness are available. Square ceiling for its design, the overall surface effect is good, line is concise and beautiful, the characteristics of convenient installation, widely used in office buildings, shopping malls, railway stations, airports, large clubhouse light conditions. AS high AS 0.5 to 0.82 AS sound insulation sound-absorbing coefficient, composition, and by using the mall. The fire detection for a-class non-combustible material, side board aluminous gusset plate of the ceiling surface beautiful and bright,elegant and easy, high precision, adornment effect can be comparable to similar products with the world. No harmful gas and harmful substances, harmless to the human body. Waterproof, moistureproof sex is extremely strong, water does not fade,changeless form. Easy installation, can be saw cut, decoration simple, maintenance is convenient.