I Metal pretreatment chemicals

1 Degreasing chemicals

2 Derusting chemicals/desmuting chemicals/pickling chemicals

3 Phosphating chemicals

 a iron phosphating chemicals

b calcium modified phosphating chemicals

c tricationic phosphating chemicals

d phosphating chemicals for oil surface, aluminium surface and cold forging surface

4 Passivation chemicals

5 Nano pretreatment chemicals

6 Blackening and bluing chemicals

7 rust converter

8 paint stripper/ remover

9 stainer