ASTM A252 piling spiral welded ssaw steel pipe ...
Description. ASTM A252 piling spiral welded ssaw steel pipe Product Description: Spiral welded steel pipe is a steel pipe which is welded and formed by bending a steel strip or a steel plate into a circular shape or a square shape. According to different welding methods, it can be divided into arc welded pipe, high frequency or low frequency electric resistance welded pipe, gas welded pipe ...
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