大阪ガス、合成メタンの新技術施設 200戸分生成でコスト削減 2040年実用化へ by | Jun 4, 2025 | ニュース | 0 comments Post Content Submit a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.