Special screw: What practical five metalses manage mainly with specialized communication, electric power, electric apparatus and instrument trade to press and install rivetting type screw.

 
  • 特殊螺絲:務(wù)實(shí)五金主要經(jīng)營(yíng)的是具有專(zhuān)業(yè)化的通訊、電力、電器及儀表行業(yè)的壓裝鉚接類(lèi)螺絲。
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