Dear sir, We take this opportunity to introduce ourselves as one of the leading manufacturers of pH Electrodes and Conductivity Cells. Our pH Electrodes are the results of months of careful research. We are well acquainted with a number of customers who are regularly in the market for pH Electrodes and Conductivity Cells. We have pleasure in sending herewith our latest catalogue covering the complete range of our products, which will give you full information and details. you will see that the prices are surprisingly low and competitive. We also would like to remind you that it is only of system of mass production that enables us to maintain these economical prices without any sacrifice of quality. We feel that a trial order would be enough for you to prove our works. Looking forward for an early encouraging communication, for which, our humble thanks in advance, Thanking you once again, Yours faithfully, For ROSALINE pH WORKS