The difference between cast iron pipe and seamless steel pipe and galvanized steel pipe

Cast iron pipe and seamless steel pipe and galvanized steel pipe different materials, cast iron is iron, seamless steel pipe is steel; different production processes, cast iron is cast iron, seamless steel pipe is processed by the rolling mill, different performance indicators, ball ink Cast iron generally has a large diameter, a thick wall, a brittle texture, and a relatively heavy weight. Seamless steel tubes can be made into very small diameters, and the walls are thin and tough and light. Cast iron, cheap, but the end of strength, can only be used in low pressure situations. The material of the seamless steel pipe is steel, which is seamless, high in strength, and used in high pressure and harsh environments. The galvanized pipe is only processed on the steel pipe, which is similar to the so-called antirust paint.
The difference between the steel pipe comes from.