发布时间:2025-02-02 21:30:35
肯定是完全密封的,不然里面就没有高压,也不叫高压锅了.如果不能密封,说明你要换密封圈了.大概5块钱一个.
但并不是100.00000%完全密封,气体都会漏的,有泄漏等级.
建筑面积100平米的平房要多少砖 水泥 沙 钢筋 木头 石灰等基本材料
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