hai, 管线密封,太容易了, 不需要用二十年 焊接都不用,塑料管都可以, 再说了,随便接根漏水管子, 也比倒海里强
hai, 管线密封,太容易了, 不需要用二十年 焊接都不用,塑料管都可以, 再说了,随便接根漏水管子, 也比倒海里强
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