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过滤砂芯
乙酰丙酮锌 水合物
带有漏斗的过滤架,聚砜,上室容量250ml
DKZ-1低温振荡水槽(恒温振荡水槽) 内胆尺寸W×D×H(mm):438×310×250
STOPCOCKS STRAIGHT, ACC. TO DIN 12541, HOLLOW ST-PLUG, SPECIAL SCREW-THREAD RET.NUT, CAP.S.ARMS,
59种VOC混标
CSK磷酸盐标准溶液 P:2.00ug atom/L(含3.05% NaCl)
SILICONE RUBBER SEALS, WITHOUT WASHER, DIM. 22 X 10 MM, GL 25
七氟-2-碘代丙烷
VOLUMETRIC FLASKS,W.SCREW CAPS,TOP CLOSED, DIN-A, CONFORMITY CERTIFIED 5 ML