Topside paint is applied to the area of the ship’s （）which is out of water when the ship is loaded.

（）can give a hard-wearing surface and the required colo...

单项选择题（）can give a hard-wearing surface and the required color.

Undercoats are used （）the primer before the topcoat.A.i...

单项选择题Undercoats are used （）the primer before the topcoat.

Primer coats are applied to a bare metal surface to （）p...

单项选择题Primer coats are applied to a bare metal surface to （）protection against rust.