... ISO,EAF+LF+VD MOQ: 10-20MT Factory professional service UT+ Peeled +Turned + Heat Treatment Commodity: Steel Forgings FlangeSteel Grade: SAE 4140, ... , 1.1730, ESR1.2083Standard: DIN, JIS, ASTM, AISI, BS, SAE, ISO, TOCT, GB, ABNTAvailable Size: max OD 2000mmIn early 2004, Wanbao ... C.:100121Tel:010-51201667 Fax:51201677Web:http:www.wanbaosteel.com ISO SAE 4140,4340,1045,8620,8640,1020,4320,52100,5135