pH指示纸pH 1-14通用指示剂

pH指示纸pH 1-14通用指示剂, roll L 4.8 m, with color scale, pH range 1-14, graduations and accuracy: 1 pH unit, MQuant^®

pH指示纸pH 1-14通用指示剂, roll L 4.8 m, pH range 1-14, MQuant^®