The Taean Friendship Glass Factory newly built a multifunctional resin sash production process with large capacity to increase the varieties of goods, while raising quantity and quality of ornamental glasses.

It strives to boost quality building materials, which are badly needed in the construction of the Ryomyong Street and Nampho Orphans' Secondary School.

The Pyongyang Building Stone Factory succeeded in developing artificial marbles with different colors and increases the production of building stone by sticking science and technology to production.

The Pyongyang Metal Building Materials Factory has produced quality building materials by introducing rational jigs and equipment into production.

Similar successes have been heard from the Hamhung Wood Processing Factory, Kangnam Ceramic Factory, Pyongyang Timber Mill and Sunchon Lagging Factory.