... able to manufacture all types of Forgings as per your requirements(length no more than 6M;Dia no less than 100MM ... #,30#.35#,40#,45#,46#,etc.according to customers' different requirements.3,main material are 5CrMnMo,40Cr,42CrMo,20Cr2Ni4,5CrNiMo,15CrNiMo ...