... SilverShape:RectangleAPI Forged Parts made of AISI 4140 4130 8630 4340 8620 SPOOL Forged Steel Tee F91 F11Description: ... we are able to manufacture kinds of ringlike&cylindrical forgings including non-standard flanges, wind power flanges, ... material are CK45, AISI 4140&4130, 5CrMnMo, 40Cr, 42CrMo, 20Cr2Ni4, 5CrNiMo, 15CrNiMo, 20CrNiMo, 35CrMo, 40CrNiMo, etc. (8). Regularly, we accept processing on ...