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適正価格  Appropriate Price   


省エネ大賞受賞技術開発の軌跡 (16)


第1章  もったいない無駄と必要な無駄


1.3 水栓哲学 VS 水道哲学



Trajectory of Energy Conservation Grand Prize-winning Technology Development (16)

Chapter 1 Wasteful Waste and Necessary Waste

1.3 Faucet philosophy VS Water supply philosophy

1.3.2 Appropriate Price