COD-C2,ce-pornPortable COD Rapid Tester
www-xxx-vidaos, COD-C2 Portable COD Rapid Tester uses advanced optics and modern electronic technology, is a new intelligent chemical oxygen demand (COD) rapid detector which integrated fast digestion and accurate colorimetric. This instrument has small, portable, flexible features, easy to carry and use, high precision and reliability.
COD-C3,beech-sexCOD Rapid Tester
18+-nude, COD-C3 COD Rapid Tester is an economical instrument, using a touch screen all intelligent operation, large screen character display, simple to operate by seeing the screen prompting .The instrument is with value direct reading, auto-zero, curve storage, automatic printing, apply for a variety of occasions and types of chemical oxygen demand (COD) routine...
erotic-films,COD-C4COD Rapid Tester
hypnotic-porn, COD-C4 type COD Rapid Tester is our fifth generation product, the apparatus according to the national standard "quick digestion spectrophotometry (HJ / T 399-2007)" designed and manufactured specifically based on our water quality and national regulatory requirements and the development of a rapid COD analyzer.
xvideos-uniform,COD-4DACOD, ammonia nitrogen, total phosphorus three-parameter analyzer
The instrument mainly measures the level of concentration of COD, but also with determination of ammonia nitrogen, total phosphorus function.,roundass
thai-nude-girl,WT-AN1Ammonia Nitrogen Analyzer
tnaflix-m, This instrument is intelligent ammonia nitrogen analyzer, large LCD touch-screen display, for each operation has a wealth of character tips, which greatly facilitates the user to see the screen prompting will operate. It is a classic laboratory equipment for testing ammonia nitrogen, high precision, wide measuring range, powerful.