Long term purchase and sale of used chemical equipment , centrifuge, reactor, filter press, rotary drum dryer, evaporator, stainless steel storage tank, heat exchanger, as well as second-hand water treatment equipment, second-hand alcohol equipment, second-hand pharmaceutical equipment, second-hand starch preparation, second-hand monosodium glutamate equipment, second-hand vinegar equipment, second-hand brewery equipment, second-hand industrial equipment, second-hand beverage production line, second-hand fermentation equipment, second-hand fertilizer plant equipment