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B11-10-340, 7211025, Bubblers/Gas Distribution/¥Õ160~250um, »ó (P0)
A07-4142-028, NEC-02H-280, ¹Ì²ô·³¹æÁö ¾ÈÀüÈ/±×·¹ÀÌ/280mm
S19-124-552, BS1000-75, Standard Test Sieve/¥Õ75xh22mm/No.18, 1.00mm