Very Cheap pH paper only 50, 000, - 100 pcs per box contents. This same pH paper with pH paper Merck brand is just a product made by china ( with brand NESCO) who already know the price is right....
' Easy Test' is a leading provider of reagents ( chemical solution) or a test kit for rapid analysis for a test compound or quality of certain materials ( easy4test.blogspot.com, dicshop.blogspot.com....