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The main thing is that glue is harmful to the human body, but after living in China for so long, what are you afraid of?
A roll on the left and a roll on the right? Maybe it's because some people are left-handed.
Go to the supermarket and buy some more oily ones to soak and then scrub them.
Buy a curtain rod that can be adjusted in length and prop it horizontally over the narrow part of the balcony, like a clothes pole.
If the gate is yours, then the lantern should be hung on the south-facing gate. As a suggestion, most people hang a lot of lanterns in their homes nowadays, and you can also buy a few more and hang them on the balcony as well. Wish; Happy Chinese New Year.
It depends on the supply agreement between you and the manufacturer, and it depends on the reputation of the manufacturer.