Syarat teknis pipa ERW Syarat Teknis Kanggo transportasi minyak lan gas Kanggo ngirim cairan tekanan rendah Bahan Gr.b Gr.b Diameter awak pipa D<508mm, ± 0,75%;D≥508mm, ± 0,75% D≤168,3, ± 1,0%;168,3<D≤508,±0,75%;Ketebalan tembok D<508mm+15.0%,-12.5%;D≥508mm, +17,5%,-10% ...
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