... fitting positioning, excellent alkali resistance is very prominent, resistant to high alkaline substances concrete erosion. Strength retention rate> 90%, elongation ... t reach by other chemical fibers.2.Specifications1) Alkali resistant fiberglass mesh size: 2.5X2.5mm 4X4mm 5X5mm 10X10mm etc .2 ... ) The weight of Alkali resistant fiberglass mesh :45g,60g,75g,100g,145g,165 etc .3) ...