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‘N.R.S’ is a set that has an injection within each syringe.
When a plunger is taken off from a rubber packing, it could
not be reusable anymore.
Yeungnam University
Gyeongsan-si, gyeongbuk, South Korea
Yeungnam University
Daegu, South Korea
Seunghun SHIN
Yeungnam University
Daegu, South Korea
Junghyo YEA