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About product and suppliers:
        Alibaba.com offers 1,223 stpp tech grade products. About 88% of these are phosphate, 5% are sulphate, and 5% are chloride. 

A wide variety of stpp tech grade options are available to you, such as free samples, paid samples. 

There are 1,200 stpp tech grade suppliers, mainly located in Asia. The top supplying countries are China (Mainland), United States, and India, which supply 99%, 1%, and 1% of stpp tech grade respectively. 

Stpp tech grade products are most popular in Mid East, Africa, and South America. 

You can ensure product safety by selecting from certified suppliers, including 467 with ISO9001, 79 with Other, and 42 with HACCP certification.