BS5157-1989Steelgate(parallelslide)valves
ASMEB3610M-2004Weldedandseamlesswroughtsteelpipe
ASMEB16.10-2009Face-to-Faceandend-to-EndDimensionsofValves
2015IBCINTERNATIONALBuildingCode
德士达(deXTRA)钢筋墩粗直螺纹连接技术