What are the specifications of cast iron radiator?

According to the national regulations, the wall thickness of cast iron radiator is generally 3-3.5 mm, and the specifications and models of cast iron radiator are usually distinguished according to the width and thickness of a single radiator, such as cast iron round head 60 and height 1800, where 60 means that the width of a single cast iron radiator is 60 mm and the height is 1.8 m .. Usually, 700 is written in the description of cast iron radiator.