ASTM A106/A53/API 5L bvunzo isati yasvika

Munguva pfupi yapfuura, yakakura yeASTM A106/A53/API 5Lyakatumirwa kuIndia.Mutengi wekuIndia akange atambira chigadzirwa uye kugutsikana kwavo.

Mufananidzo unotevera ndiwo muedzo usati wasununguka, ndapota tenda.