... boltPayment terms: L/C,Website:http://www.inter-railway.com, D/A, D/P, T/T, WesternType:fish boltPlace of Origin:Ningbo ... #-14#6. Finish Plain, Zinc plated, Passivized, Nickel plated, H.D.G., Black Oxide, Decrement, , etc.7. Production TechniqueCold forging, Hot forming ... treatment?It's Plain, Zinc plated,Passivated, Nickle plated, H.D.G.We can do others.4. What is your material?It ...