6085| 14
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想在銅螺紋的六方上打孔 |
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點(diǎn)評(píng)
一種一次性鎖具,,用于指示是否開啟過,一般都是兩根細(xì)銅絲加一個(gè)小鉛塊,,小型罐式滅火器上的保險(xiǎn)栓上就有這個(gè)東西,。
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