Marine Aluminum Fixed Rectangular Window: Marine Aluminum Fixed Rectangular Window is made of aluminum.With good tightness,it is used for wheel house and other curved bulkhead which needs soundproof and heat insulation.It is designed with simple structure and becautiful shape. Parameters: Length (mm):300/355/400/450/500/560/900/1000/1100 Width (mm): 425/500/560/630/710/800/630/710/800 Glass Thickness: 8/10/12/15/19 Material: Aluminum Alloy & Glass Classification: ABS, LR, BV, NK, DNV, RINA, RS, IRS,CCS For more details, please feel free to contact us.