MSS SP-118-2007 法兰端,无法兰端,螺纹端和焊接端紧凑型钢制截止阀和止回阀(化工和石油精炼用).pdf

MSSSP-118-2007MSSCompactSteelGlobe&CheckValvesFlanged,Flangeless,Threaded,&WeldingEnds(Chemical&PetroleumRefineryService)StandardP...