Vasati vatumirwa kuchiteshi, mumiriri wemutengi akauya kuzoongorora pombi yesimbi isina musono. Kuongorora uku kwaive pamusoro pekuongororwa kwechitarisiko chepombi yesimbi isina musono. Zvinodiwa nemutengi zvaiveAPI 5L /ASTM A106 Giredhi B, SCH40 SMLS 5.8M. Tine dhayamita yekunze uye Ukobvu hwemadziro nechitarisiko chepombi yesimbi zvakapendwa nhema uye zvakaongororwa. Mumiriri wevatengi akaratidza kugutsikana. Nhasi ticharongedza, kuvharira uye kutumira kunzvimbo yekutumira. Tinovimba kuti vatengi vachagamuchira mapaipi edu esimbi nekukurumidza uye vachatsigira kushandiswa kwawo mumapurojekiti evatengi.