Blister were observed in the surface of square pipe after being hot zinc-plated.
方管表面热镀锌后出现不同程度的鼓泡现象。
Such as: stainless steel pipe, square pipe, rectangular pipe, embossed pipe, threaded pipe, platinum-plated tube.
如：不锈钢圆管、方管、矩管、压花管、螺纹管、镀铂金管等。
A deformation way from round welded pipe to square one is introduced.
介绍了一种由圆形焊管变方形焊管的变形方式。
A deformation way from round welded pipe to square one is introduced.
介绍了一种由圆形焊管变方形焊管的变形方式。
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