How to fix corded blinds

I have one big thing of blinds they are in three sections and each section has its own two cords the middle section which is the bigger one won't go up even and one of the strings is shorter than the other how can I fix it

この質問に回答する 同じ問題があります

この質問は役に立ちましたか?

スコア 0
コメントを追加