2020年11月25日 コラム
オゾン層破壊物質であるHCFC類（R22冷媒など）は生産ゼロ化されます この削減・全廃は政府間国際協定（モントリオール議定書：1987年）およびオゾン層保護法（1988年制定）に基づくもので、すでにCFC（R12、R50 …
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