Day: July 20, 2021

 1. Graphitization process of cast iron     The formation process of graphite in cast iron is called graphitization process. The basic process of the...

 The 690 alloy tube used for the steam generator heat transfer tube of nuclear power plant bears the corrosion of high temperature, high pressure and...

   Duplex stainless steel has the same proportion of ferrite and austenite, and has excellent mechanical properties and corrosion resistance. It is widely used in...