Size Range M-2 to M-52 (I.D.)
Specifications followed ISS / BSS / DIN / GOST / JIS / ASTM
Raw Material Offered High Carbon Spring Steel, Stainless Steel, Phosphor Bronze, Alloy Steel
Finish Offered Standard Natural Blue, Zinc Blue/Yellow, Phosphated, Tinned, Cadmium, Hot-dip galvanised Green/Black/Red