301 ibyuma bidafite ingese byerekana ibintu bikomereye akazi mugihe cyo guhindura ibintu, kandi bikoreshwa mubihe bitandukanye bisaba imbaraga nyinshi.
302 ibyuma bidafite ingese ni muburyo butandukanye 304 ibyuma bitagira umwanda bifite karubone nyinshi.Irashobora kubona imbaraga zisumba izindi zikonje.
302B ni aibyuma bidafite ingese hamwe na silikoni nyinshi, ifite imbaraga nyinshi zo kurwanya ubushyuhe bwo hejuru.
303 na 303Se-gukata kubusa ibyuma bidafite umuyonga birimo sulfure na seleniyumu, bikoreshwa cyane mubihe bisaba gukata byoroshye kandi bigaragara neza.
303Se ibyuma bidafite ingese nabyo bikoreshwa mugukora ibice bisaba guhungabana, kuko mubihe nkibi, iki cyuma kidafite ingese gifite akazi gashyushye.
304 ni ubwoko bwibyuma bitagira umwanda, ikoreshwa cyane mugukora ibikoresho nibice bisaba imikorere myiza yuzuye (kurwanya ruswa no guhinduka).
304L ni variant ya 304 ibyuma bidafite ingese hamwe na karubone nkeya, ikoreshwa mugihe gisaba gusudira.Ibiri munsi ya karubone bigabanya imvura ya karbide mukarere katewe nubushyuhe hafi ya weld, kandi imvura ya karbide irashobora gutera kwangirika hagati yimitsi (gusudira) kwangiza ibyuma bimwe na bimwe mubidukikije.
304N ni ubwoko bwibyuma bidafite umwanda birimo azote.Intego yo kongeramo azote nukuzamura imbaraga zicyuma.
Igihe cyo kohereza: Gashyantare-23-2023