Analytical Instruments, Testing Instruments, Microscope manufacturer / supplier in China, offering Lsyk-Oil-7 PRO UV Oil Analyzer for Petroleum & Grease - Triple Parameters & Silica Gel Tech, Lsykj-16A PRO Multi-Parameter Digester for Cod/Tn/Tp - 16 Wells & 6 Pre-Set Programs, Lsykj-4b PRO Portable Cod Water Digester - 4 Wells Field Tester & 6 Pre-Set Programs and so on.