钢管和管件有两种标准端部型式，即：法兰和丝扣。
Two types of end are standard on steel pipes and fittings, that is flanged and screwed.
钢管和管件有两种标准端部型式，即：法兰和丝扣。 。
Two types of end are standard on steel pipes and fittings, that is flanged and screwed.
钢管和管件有两种标准端部型式，即：法兰和丝扣。
Two types of end are standard on steel pipes and fittings that is flanged and screwed.
钢管和管件有两种圭臬端部型式，即：法兰和丝扣。
Two types of end are standard on steel pipes and fittings - that is flanged and screwed.
至少一个第二喷嘴管与燃料源流体连接并从第一喷嘴管向外径向分隔开，并且该第二喷嘴管的近端固定于法兰。
At least one second nozzle tube is fluidly connected to the fuel source and spaced radially outward from the first nozzle tube with a proximal end fixed to the flange.
一种钢法兰毛坯加工工艺，尤其是一种平法兰、对焊法兰、预应力管桩端板法兰毛坯加工工艺。
The present invention is the production process of steel flange blank, especially of flat flange, butt welded flange and prestressed pipe pile end plate flange.
一种钢法兰毛坯加工工艺，尤其是一种平法兰、对焊法兰、预应力管桩端板法兰毛坯加工工艺。
The present invention is the production process of steel flange blank, especially of flat flange, butt welded flange and prestressed pipe pile end plate flange.
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