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氣(qi)動(dong)塑料球閥(fa)（材質UPVC、雙由令連接(jie)、配雙作用(yong)或單作用(yong)氣(qi)動(dong)執行(xing)器(qi)、不帶附(fu)件(jian)）

氣動塑料球閥實物圖

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