... 4/5/6/8/10mm (twin-wall structure)2) Standard Width x length: 2,100 x 5,800 ... or 2,100 x 11,8003) Weight: ... 0.85/1/1.3/1.5/ ... 1.7kg/m24) Colors: blue, transparent, opal, green, bronze,etc.5 ... Telephone booths, street name plates and sign boards;5) Instrument and war industries - windscreens, army ...