fillet weld connection 贴角焊连接
weld flange connection 焊接法兰连接
weld connection 焊接连接
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During the Spiral welded pipe production, the main reasons of manual bend caused in strip steel are unusual aline of strip steel in strip steel connection weld process.
在螺旋焊管生产过程中，钢带产生人为硬弯的主要原因是对头焊工序中钢带不能对齐所致。
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