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In essence, a one-way degassing valve is a small mechanism usually found at the back of coffee bags.

Bruce 发表于 2024-11-1 11:59:45 [显示全部楼层] 回帖奖励 阅读模式 关闭右栏 0 12
In essence, a one-way degassing valve is a small mechanism usually found at the back of coffee bags.
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