Amapayipi ensimbi ahlanganisiwe angenamthungoI-ASTM A335 P11, I-ASTM A335 P22, I-ASTM A335 P91 ithunyelwe emazweni aseNingizimu Melika kulokhu konke kuvela ezimbonini zensimbi zasekhaya ezidumile, i-TPCO, i-SSTC, i-HYST.

Ifektri yokubambisana yenkampani igcina amathani ayi-6,000 amapayipi ensimbi angenamthungo unyaka wonke, ikakhulukaziamapayipi ebhoyila, ASTM A335 P5, P9, P11, P22, P91, njll. Eminyakeni yamuva nje, uhlu lwezimpahla zethu zokubambisana luye lwanda lwabaamapayipi ensimbi yekhabhoni, amapayipi ayisikwele nangunxande, kanyeamapayipi ensimbi engagqwali. Abaphakeli esibambisana nabo banganikeza izimpahla ezithengiswayo kanye namanani afanele kakhulu ukuhlangabezana nezidingo zezinhlobo ezahlukene zama-oda, kusukela kumapayipi amancane ensimbi elilodwa kuya kumathani amaningi ensimbi, ama-oda empahla, ama-oda obunjiniyela, kanye nama-oda okuhweba. Singanikeza isevisi yokuma okukodwa. Siyakwamukela ekuthengeni.