ASME B16.11- 2009 承插焊和螺纹锻造管件
ASME B16.11-2009(Revision of ASME B16.11-2005)Forged Fittings,Socket-Weldingand ThreadedA N A M E R
ASME B16.11- 2009 承插焊和螺纹锻造管件