发布时间:2025-01-31 05:12:47
咨询焊锡丝的厂家,一般是型号代号,对应的这个型号相应的一些参数就有了, 比如合金成分比例、线经、重量等等区别。强力的有63A 是锡铅合金的,含锡55的吧,还有63%标号的就是含锡63%的。
家里ppr水管只有一根25的接了一个水龙头我想自己多接两根水管和龙头该怎么连接
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