... ,stainless steel window screen,square wire mesh...... Specifications: 1, standard mesh/inch:20x 20,18x 18,16x 16,18x 16 ... ,18x 14 2, standard color: White, black, grey, other colors at request. ... 3, standard width:24",30",34",36",42",48",60",72" 4, ... windows with automatic rolling screen. fiberglass screen ( Manufacturer and Factory )