... nomianal diameterDN250-DN1600DN15-DN800Thickness2.0-50mm Bending radiusR=1.5D-R=1D Angle of bend45°,90°,180° Liaocheng Tianrui steel ... size flange,large size elbow,reducer,weldolet,coupling,steel pipe cap,seal head,end cap,concentric reducer,eccentric reducer,steel pipe,pipe fitting ... ,like 45deg,90deg,180deg,L/R OR S/R,bend ,equal or reducing tee, CON reducer, ECC reducer, pipe cap,flange. CON ...