Chifukwa chake, atha kugwiritsidwa ntchito mu mankhwala acid a asidi ndi zakudya zopanga. Pali mitundu yosiyanasiyana monga Astm F2281 SIYO N02200 NI 200 NI 200 NO Scress, Hexct mutu, mtedza, zomangira, ma studets. Chizindikiro chachangu ndi ASTM B160. 2.4066 Nickel Ma bolts ophatikizika ali ndi 99% Nickel, mkuwa, chitsulo, manganese, kaboni, kaboni, ndipo sulfur. Astm F2281 Nickel Anoy Bolts ndiokwera mtengo, koma ndi othandiza pamapulogalamu ang'onoang'ono omwe agonjetsedwa ndi kututa. Mtengo wa oyeserera siofunikira monga mankhwala ena othandizira ndi kupanga zakudya. Nickel 200 Stex N02200 mtedza ndi imodzi mwazomwe zimagwiritsidwa ntchito kwambiri chifukwa cha mitu ya geometry ndi kuthekera kwakukulu.