... , metallurgical steel, wuhan, etc. Product material for: # 20, 35 #, 45 #, 20 G, 20 A, 40, 45 Mn2 Mn2, 27 SiMn, 40 MnB ... , 20 MnVB, 20 Cr, 30 Cr, 35 Cr, 40 ... CrNi2, 12 CrNi3, 12 Cr2Ni4, 40 CrNiMoA, 45 CrNiMoVA, 20 G, 20 MnG, 25 MnG, 12 CrMoG, 15 CrMoG, 12 Cr2MoG, ... mm-60 mm of seamless steel tube, material for: # 20, 45 #, 16 Mn, 27 SiMn, 15 CrMo, 30 ...