화공부의 표준은 거의 업데이트되지 않으며, hg20570은 95년의 표준입니다
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여러분, 20570을 대체할 수 있는 기준이 무엇인지 알아내셨나요?
같은 질문입니다. 20년이 넘었는데, 왜 기준이 아직도 업데이트되지 않는 건가요?
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