Uma kukhulunywa ngamapayipi ensimbi, amapayipi ensimbi i-A252 Grade 3 agqama njengenketho yokuqala ezimbonini eziningi.Lolu hlobo lwepayipi, olwaziwa nangokuthi yi-spiral submerged arc welded pipe (SSAW), ipayipi elishiselwe i-spiral seam, noma ipayipi lomugqa we-API 5L, linikeza ububanzi bezinzuzo ezikwenza kube ukukhetha okudumile kwenhlobo...
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