180 deg Alloy seel pipe bend CE&API certification Size:DN15-DN1800 Wall thickness:2.0-120mm Bending radiusR=3D-10D 180 deg Alloy seel pipe bend CE&API certification Size:DN15-DN1800 Wall thickness:2.0-120mm Bending radiusR=3D-10D180 deg Alloy steel pipe bendAPI & CE Certification Material A369-FP1,-FP2,A250-T1,T2,T9,T12,A199-T11,T22,A335-P1,P2,P5,P11,P12,P22,P91,P92 etc. Bending radius (R) R=3D , ...