It's used for construction.It's used for outside and inside of the wall to keep the room warm an strong. fiberglass glass mesh4*4 , 5*5 ,6*6 , 4*5 ,5*6, 6*6, 10*10mm, 75-165g/m2 ,1*50m/roll,white, blue ,orange .etc.My product is alkaline resistant fiberglass mesh.The raw material is fiberglass. It's used for construction.It's used for outside and inside of the wall to keep the room warm and ...