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美國Hach GLI ?

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Since GLI International joined us in 2002,
Hach has been working to make the integration of the GLI brand seamless to customers. In the tradition of GLI, Hach continues in the design and manufacture of innovative products such as the patented differential pH sensor, which revolutionized pH measurement and has become the industry standard for demanding process applications. GLI and Hach offer a complete line of online systems measuring pH, conductivity, dissolved oxygen, turbidity, chlorine and many other parameters.
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