Among them are pump for underground ultra-saline water, feed-water pump and cooling-and-heating circulation pump.

The new pump for underground ultra-saline water raised suction capacity and efficiency by 12 percent as compared with the previous one.

The feed-water pump, a horizontal multistage centrifugal pump, is low in production cost and has good technical characteristics, enjoying popularity among the users.

The cooling-and-heating circulation pump, a horizontal single-stage centrifugal pump, is used for supply of domestic water and circulation of cooling-and-heating system.

Now, one hundred and tens of cooling-and-heating circulation pumps are operating on a normal basis in Ryomyong Street.