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STRAIGHT HIGH VACUUM VALVE, "WITAFLO" DURAN, VALVE PLUG MADE OF PTFE 6 MM, SIDE ARMS D.10 MM,L.75
甲醇中苯酚溶液标准物质
STIRRER MAGNETS Triangular Rare Earth
糠醛 AR(沪试)
INSTRUMENT JAR, ? 60 mm
2-溴-3-氟苯甲酸
4,4'-氧双邻苯二甲酸酐
LABORATORY SCISSORS, STAINLESS STEEL, PLASTIC GRIP, LENGTH 250 MM
2孔石墨垫,15% Graphite 85% Vespel
TitanHT PCB ,适用于10位阀