What is the difference between 42CrMo4 and 25CrMo4 steel pipes
DIN 1.7218 pipe, AFNOR 25CD4 tube fittings, BS 1717CDS110 pipe bending, BS 708A25 tubes, UNI 25CrMo4(KB) elbows, SS 2225 flanges, UNE 55Cr3 elbows, EN 1.7218 fittings, UNS G41300 elbows, UNS H41300 flanges, IN 17205 Grade GS-25CrMo4