Brass Opening Side Scuttle for Ship Made with copper, this product side scuttle can be called as porthole.
Marine Window Standard: GB/T14413-1993, GB/T5746-2001, GB/T3226-1995, CB/T3765-1996, ZBU26001-89, GB3889-83, GB3890-83, CB*3132-83, ZBU26003-89, CB*3288-87, etc.
Type A Side Scuttle For Ships The dog lock is used on the marine weathertight door CB/T3477.