你把妈妈的钢针放哪儿了？
腿骨折了一定要传钢针吗。
只要本质是负的，一支钢针也可以危害社会。
As long as essence is negative, even a steel needle can do harm to the society.
操作方便简单，成本低无污染，不锈钢针为永久性磨材。
The magnetic finishing machines are of simple and convenient operation, low cost.
构成产品零部件名称：输液针针柄、细管、输液针针柄、钢针、输液针保护套。
Component part name: needle handle, thin tube, steel needle, needle protective cover.
构成产品零部件名称：输液针针柄、细管、输液针针柄、钢针、输液针保护套。
Component part name: needle handle, thin tube, steel needle, needle protective cover.
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