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[出讓] pH Test Papers $20/100張

trendyctx 文章: 37 來自: HK

1 于 2010-02-28 12:18      http://www.johnsontestpapers.com/ Universal Indicator Paper pH1-11 and pH1-14 Universal Indicator is one of the most widely used test papers in education, laboratory and chemical manufacturing. They provide an accurate and quick method of measuring the pH of a solution. These products supplied with a colour chart and available as books of 20 strips, loose strips and as a 5 metre continuous reel. 英國貨, $20/100張, 元朗、天水圍或西鐵沿線交收, 亦可郵寄(包郵費), 有意pm留電。

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