一方面是产品高端化。它早早切入核电用管、深海油气开采用管等高附加值领域，实现多项进口替代。这跟背后持续不断的研发投入直接相关。据统计，久立特材和中信特钢多年研发费用率均在4%左右，远高于普钢企业。
Веселая вдова.На свободу вышла одна из самых изощренных преступниц Британии. Как она мастерски манипулировала людьми?26 сентября 2022
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As for the code modules that suggest Coruna’s origins as a US government toolkit, iVerify’s Cole notes one alternative explanation: It's possible that the overlaps between Coruna's code and the Operation Triangulation malware, which Russia pinned on US hackers, could have resulted from Triangulation’s components being picked up and repurposed after they were discovered. But Cole argues that’s unlikely. Many components of Coruna have never been seen before, he points out, and the whole toolkit appears to have been created by a “single author,” as he puts it.