Umbhobho we-SSAW-spiral seam welded steel pipe Intshayelelo: Umbhobho we-SSAW ngumbhobho wentsimbi ojikelezayo odityanisiweyo, umbhobho we-SSAW unezibonelelo zexabiso eliphantsi lokuvelisa, ukusebenza kakuhle kwemveliso, uluhlu olubanzi lwesicelo, amandla aphezulu kunye nokukhuselwa kokusingqongileyo, ngoko...
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