Industrial, Laboratory Equipment, Zhengzhou Greatwall Scientific Industrial and Trade which was founded in1988 ia a prosessional lab instruments, mainly including water circulating vacuum pump, low temperature cooling liquid cieculating pump, rotary evaporator, borosilicate glass reactor, a strong R&D team insist on innovation accordint to market needs, and can make a perfect solution for our client. Strict management system ensure that we, Air Cleaning Equipment, Industrial Pump, Compressed Air Dryer ...

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