The type of steel strip's annealing 

1)full annealing and isothermal annealing.

full annealing is also called recrystallization annealing,commonly just referred to as annealing.this annealing is mainly used in all kinds of carbon steel strips ,and alloy steel strips,it is generally as the heating treament in advance.

2)spheroidizing annealing

spherodizing annealing is typical used for the eutetoid carbon steel and alloy steel(such as the steel which is made cutting tool,measuring implement,mould.etc),that main purpose is to reduce the hardness,improve the machinability,and it is prepared for the quenching

3)stress relief annealing 

stress relief annealing is also known as low temperature annealing(or high temperature annealing),this annealing is mainly to eliminate the remaining stress of hot rolled,colled rolled.etc.if not removed these stress,it will be caused the transformation and crack after the steel are working for a certain time or on the following cutting process.