Report - Companya106 gr.b-astm a106 gr.c astm a333 gr.6 astm a671 - astm a672 astm a53 en standards astm a335/a691: p1 - p11 - p12 - p22 - p5 - p9 - p91 - p92 en standards astm a312/a358: tp304/304l/304h

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