Weldable Marine windows ·Frame Material : Mild steel ·Glass Keep Material: Aluminium/Brass/SUS ·Glazed with clear/ tinted toughened glass ·Neoprene gasket Types: a) Fixed-Optional: Heating element glass (Min. 19 mm thk)c/b thermostat ＆ thermovit control terminal Box (Voltage-220/1/60Hz) b) Outboard / Inboard hinge (OUH/IUH) c) Outboard / Inboard side hinge (OSH/ISH) d) Horizontal sliding