What's the middle copper rivet for? But some spearhead is made all by iron?
中间的铜铆是何用途?可有些枪头又完全是铁造?。
Each copper rivet on all Special saddle models is carefully hand hammered by skilled craftsmen.
车座的每个型号都有高级技师特别小心的手工锤制铜铆钉。
Precision spring(compression/tension/torsion/special-shape/battery spring), USB stainless clockwork spring, copper, iron and aluminum rivet, nail claw/claw pearl, and toy axle.
精密弹簧（压簧、拉簧、扭簧、异形弹簧及电池弹簧等）、USB不锈钢伸缩发条、铜铁铝铆（窝）钉、爪钉/管珠、玩具车轴。
We have rivet nuts of more than 400 kinds, including cylinder, hexagon, open end, close end, carbon steel, stainless steel, copper, etc.
公司现在的铆螺母产品种类非常齐全，包括圆柱体，六角体，通孔，盲孔，以及碳钢，不锈钢，铜等近400款产品。
Main products: copper screw, rivet, hexagon copper post, push pull connector and communication connector etc.
主要产品：铜钉、铆钉、六角铜柱、接插件、通讯连接器等精密五金零件。
Main products: copper screw, rivet, hexagon copper post, push pull connector and communication connector etc.
主要产品：铜钉、铆钉、六角铜柱、接插件、通讯连接器等精密五金零件。
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