72409130
Dec 1, 1971
Aug 14, 1973
BATCH AND CONTINUOUS WASTE TREATMENT UNITS FOR CHROME REDUCTION, CYANIDE DESTRUCTION, ACID-ALKALI NEUTRALIZATION, METAL PRECIPITATION, PHOSPHATE REMOVAL, OIL SEPARATION, PRECIOUS METAL RECOVERY, WATER DEIONIZATION, SEDIMENTATION, COAGULATION, SLUDGE FILTRATION AND FUME SCRUBBING
Yarns and ThreadsSOLID STATE ELECTRONIC INSTRUMENTS FOR MEASUREMENT AND CONTROL OF PH ACIDITY AND ALKALIDITY, OXIDATION AND REDUCTION POTENTIAL, AND CONDUCTIVITY
Fancy Goods