Material
Steel: C1008, C1015, C1022
Stainless steel: SU302, SUS304, SUS316, SUS410, SUS430
Alloy steel: 35ACR, 40ACR, SCM435, 10B21, 10B22, 10B38
Surface treatment
Zinc Plated (Cr3+) (Cr6+), Nickel Plated, Black Zinc, Black Oxide, Black Phosphated, Grey Phosphated, Yellow Zinc, Mechanically Galvanized, Passivated.