There are two kinds of air-conditioning through wall pipelines, one is near vertical and the other is near horizontal. For the former, fire prevention is extremely necessary, for the latter, fire prevention is necessary.The first step is to use a knife to peel off the outer coating of the pipeline and expose the pipeline itself. The stripping distance is about 10 cm.The second step is to pour at least one hundred millilitre and preferably two hundred and fifty millilitre of water glass into the thermal insulation foam outside the two copper pipes, and slowly carry out the process several times in a small amount. This step may be omitted.The third step is to cut the return warter pipe about five to ten centmeter, and connect it with a metal pipe of similar diameter. Other glue such as double group wound glue can be selected. I use cloth glue.The fourth step is to fill the space stripped in the first step with plaster of Paris, add proper amount of water and form a semi-rigid paste, and polish it by hand.It is suggested that the national legislation require the air conditioner manufacturer to provide fireproof air conditioner through wall cable sets, which have fire protection function when the air conditioner is installed for the first time.Video target:https://v.kuaishou.com/rpZKEt

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象屋远远的望过去，真的如一头蓄势待发的大象伫立在芭蕉丛林里，不过，直到我离开埃塞俄比亚，最终也没弄明白，这多孜人与大象有什么渊源。这是一项具有挑战性的任务。一天到晚忙的像个不能停止的机器，只是简单的为了解决温饱而埋头苦干着，也不曾认真思考一下未来，重新规划一下未来，这么多年过去了还是这样的天真"。"为了缓解素万那普机场的客流量，交通部副部长查查特·西蒂潘（Chatchart Sitthipan）表示，从4月11日开始，将安装四个自动门来处理乘客的护照。座椅结构经过全面重新设计，在保持尺寸（超过 2 米长、61 厘米宽）的同时提供额外的舒适度，使其成为市场上最宽敞、最舒适的座椅之一。H。"睡不着，找个人聊聊，本人男睡不着，有没有人聊天的"。澳洲这边都合法，但必需要有执照，赌场只有这一个，妓院每个区分几个执照，不能在居民区，接受政府统一管理，定期安全卫生检查，都交很高的税，然后用这些税收去给困难居民办福利，结果社会比较安定，政府也少些腐败。