This is a type of sliding window, and it is appropriate for the wheelhouse and superstructure above the freeboard deck of various vessels. Two shapes are provided: square angel and round angel. Made of aluminium, the color and the size can be customized according to clients’ demands. The quality is identified by the standard of CB/T3765-1996. IACS certificates like CCS, NK, BV, DNV.GL, LR, ABS, RINA, IRS, RMRS, etc. are provided to be chose.