The not significant deviation, open seams should be in the middle, or whether cutting pipe end bite flange should be accurate, pressing, after the joint will be neat, close.
插条不能明显偏斜，开口缝应在中间，不管插条还是管端咬口翻边应准确、压紧，以后连接接头才会整齐、贴紧。
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。
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