... JB; ASME/ASTM/AISI; DIN; EN; JIS2. Materials:Steel/Carbon/Alloy/Stainless steel3.Customers designsCompany owns D-grade license ... 42CrMo4,34CrNiMo6, 30CrNiMo8, Q235, Q245R, Q345R, 16Mn, 20Mn,20#, 45#, 304,410, etc. We can make steel according tothe chemical composition of ... the steel materials. 2Forging ...