... 1.Usage:ceiling; 2.Easy to install Metal runner and stud Product profile:Construction Image: Studs Wall ... Matching magnesium fire-proof board,gypsum board,and many other wall and ceiling board;3.Moisture -proof,shock- ... resistance,high-effecient,environmentally-friendly and so on;4.Easy and fast for installation,time-saving;5. ... ,50 track,75 track,100 track and 150track Metal runner and stud