... of theAmerican society for testing materialsFiberglass window screening uses glass fiber monofilament,and adoptsspecial process of coat vinyl resin ... 20,22,24,30 32,36,38,40,46,54,60,66,72,78BlackGrayGreenGray andwhite 18×1418,20,22 ... ,24,30,32,36,38,40,46,54,60,66,72,78Type2 0.01218×16 Order it ... samples, requirements TransomscreeningType218×14 0.0128×8 GLASS FIBER INSECT SCREEN(FACTORY)