Ipayipi Lensimbi Eligoqiwe Elishisayo
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I-API 5L Engenamthungo Eshisayo Ejingiwe Ipayipi Lensimbi
Ipayipi lomugqa we-APIipayipi lemboni elithobela i-American Petroleum Standard (API) futhi lisetshenziselwa ngokuyinhloko ukuthutha okusamanzi okufana nowoyela negesi yemvelo. Lo mkhiqizo utholakala ngezinhlobo ezimbili zezinto ezibonakalayo: ipayipi lensimbi elingenamthungo nelishiselwe. Iziphetho zamapayipi zingaba zilula, zicushwe, noma zifakwe isokhethi. Ukuxhumana kwamapayipi kufinyelelwa ngokushisela ekugcineni noma ngokuhlanganisa. Ngokuthuthuka kwezobuchwepheshe bokushisela, ipayipi elishiselwe linezinzuzo ezibalulekile zezindleko ezinhlelweni ezinobubanzi obukhulu futhi kancane kancane seliphenduke uhlobo oluvelele lwepayipi lomugqa.