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    About product and suppliers:
            Alibaba.com offers 52,216 calculator products. About 28% of these are calculator. 
    
    A wide variety of calculator options are available to you, such as plastic, rubber. You can also choose from scientific, graphic calculator, and general purpose calculator. As well as from calendar, alarm, and paper printer. And whether calculator is 12, 10, or 8. 
    
    There are 50,469 calculator suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Hong Kong, which supply 98%, 1%, and 1% of calculator respectively. 
    
    Calculator products are most popular in North America, Western Europe, and Southeast Asia. 
    
    You can ensure product safety by selecting from certified suppliers, including 17,151 with ISO9001, 3,920 with Other, and 1,676 with ISO14001 certification.
            
    河北20选5复试