ERW pombi zvounyanzvi Zvinodiwa Zvekufambisa oiri negasi Pakufambisa kwemafuta negasi kuderera Material Gr.b Gr.b Pipe dhayamita yemuviri D<508mm, ±0.75%; D≥508mm, ± 0.75% D≤168.3, ±1.0%; 168.3<D≤508,±0.75%; Rusvingo ukobvu D<508mm, 15.0%, -12.5%; D≥508mm, +17.5%,-10% ...
Verenga zvimwe