service life is long,high security, widely used, such as Sany, Zoomlion,PM,Schwing in China, highly praised by the ... OD:3000mm3) Standard:ASME,ANSI,API,JIS,JPI,DIN,UNI,BS,AS4) Material:A105,Q235,WCB,CF8,CE8M,CF3,CF3M,etc ... ,5-30K,PNO.25-32Mpa7) Packing:plywood class,pallet or as pre customers request8) Special design available clamp flange