Calcium ígwè efere bụ otu n'ime ígwè calcium usoro, site elu njupụta calcium silicate osisi elu site chemical usoro, ma ọ bụ inorganic enamel ga-elu weatherability fluorocarbon aluminum zinc ígwè efere na ha organic Nchikota, supplemented site elu okpomọkụ na nrụgide, static mgbali ọgwụgwọ. usoro, na n'azụ na oyi akwa nke mechiri emechi, mmiri mmiri, na-ewusi ọrụ nke aluminom kpuchie ákwà.Steel calcium efere pụrụ iche Ọdịdị, nwetara a ọnụ ọgụgụ nke mba patents, bụ ụdị nke gburugburu ebe obibi nchebe, ume na-azọpụta ihe ọhụrụ, ọ na-ọtụtụ ebe na-eji ọwara, ụzọ ụgbọ oloko, ọdụ ụgbọ elu na ndị ọzọ n'okpuruala njem engineering ọkụ nchebe na mba nchebe.