Minisiteri y'Ubucuruzi ya Amerika (USDOC) itangaza ibyavuye mu misoro yo kurwanya ikoreshwa ry'ingufu (AD)…
Icyuma kidasembuye kirimo chromium, itanga ubushobozi bwo kurwanya ingese mu bushyuhe bwinshi. Icyuma kidasembuye gishobora kwihanganira ingese cyangwa ibidukikije bitewe n'ubuso bwacyo bworoshye. Ibikoresho by'icyuma kidasembuye bifite ubushobozi bwo kurwanya ingese kandi ni byiza gukoreshwa igihe kirekire.
Isahani y'icyuma gitembera ya 304 cyangwa 304L ifite imikorere nk'iya 304 Stainless Steel, mu gihe ifite imiterere y'isahani yo hejuru kugira ngo irusheho gukururwa. Isahani y'icyuma gitembera ya 304 cyangwa 304L ikwiriye ku buriri bw'imodoka, aho kuzamuka, aho kuzamuka ku madarajya cyangwa ahandi hose hasaba gukururwa.