Carbon Steel Materials apply : water, steam, oil and other non-corrosive media
Cr-Mo steel (I) application materials : oil, steam, etc.
Chromium nickel-titanium and stainless steel (P) dielectric material applied : weak corrosive
Chromium and stainless steel nickel-titanium (P) dielectric material applied : weak corrosive

carbon steel materials:≤425
Cr-Mo steel (I) Material:≤550
Chromium nickel-titanium and stainless steel (P) Material :
For the weak of corrosive media:≤150
For oil and other medium:≤550
Ti-Cr-Ni-Mo stainless steel (R) material:≤150