Purchase Qty. Reference FOB Price
250-999 box US$1.50
1,000+ box US$1.30
Product Description
Product Description 100 strips pH 1-14 Extensive Test Paper Litmus Paper pH Test Strips pH test paper is by a variety of mixed indicator of a pH meter material test, there are 14 card to determine pH value content, different pH content color range is different, smaller numbers, more acidic, with ...