Izidingo zobuchwepheshe zepayipi le-ERW Izidingo zobuchwepheshe Zokuthutha uwoyela negesi Ngokuthutha uketshezi olunomfutho ophansi I-Material Gr.b Gr.b Ububanzi bomzimba wepayipi D<508mm, ±0.75%; D≥508mm, ±0.75% D≤168.3, ±1.0%; 168.3<D≤508,±0.75%; Ukujiya kodonga D<508mm, +15.0%,-12.5%; D≥508mm, +17.5%,-10% ...
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