WDL-9000A Microcomputer automatic sulfur analyzer
WDL-9000B high-precision microcomputer fully automatic sulfur analyzer (21 samples at a time) (including computer and printer)
WDL-8000A microcomputer fast integrated sulfur
WDL-8000B microcomputer liquid crystal fast integrated sulfur
FL-900 microcomputer automatic fluorine chlorine tester
DN-800 semi-micro steaming nitrogen analyzer
KZCH-8000 Automatic Hydrocarbon Element Analyzer
GT-6000 Type X Fluorescence Calcium Iron Analyzer
CP-6000 Coal phosphorus tester
CAs-6000 coal arsenic analyzer