「How Regularly Should A Commercial Boiler Be Serviced」の版間の差分

ナビゲーションに移動 検索に移動
ページの作成:「Most new boilers have an effectivity rating above 90%, whereas older boilers were round 60 – 70%; look out for the term A-rated as which means the boiler does in realit…」
(ページの作成:「Most new boilers have an effectivity rating above 90%, whereas older boilers were round 60 – 70%; look out for the term A-rated as which means the boiler does in realit…」)
 
(相違点なし)
5

回編集

案内メニュー