Marine side scuttle window
Used for sea-going ship and warships also could used for inlang ship
The porthole have good water and enough strengths
The porthole spare parts surface neat and clean.
A surface of the mold can not have the forging blemishs,such as pore and the blemish of other influence strengthses
The porthole glass beard adopts the GB11946 provision steel to turn the glass ,also qualified certicate.
