... to OD 1600 mm(3) series:71900, 7000,7200, 7300, 71800 series(4) structure:AC, C, B , with contact angle 25,15,40 ... , GCrSiMn, 100Cr6,100CrMn6, 52100, SUJ2(6) service:OEM services provided2. export to :Germany, United States, United Kingdom, Spain, Italy, Austria, Singapore ... /Outer wooden case(2) For OD above 250 mm: Wrapped with water-proof belt then put in wooden case4. delivery time ...