SPCC is usually annealed, and the latter H is just his annealing method! SPCCH is a continuous cold-rolled steel plate, which is not suitable for industries with poor stamping formability such as stamping and automobile! There is also a kind of hood annealing, which has uniform annealing and good stamping performance, but the disadvantage is high cost. The price per ton of steel is 50- 100 yuan, and the surface is not very bright, and there are often carbon residues, so this steel is finally used for stamping. I summed it up myself .