Buy selenium powder 99.9%

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Product: Selenium powder 99.9% original Japanese or American is prefered.
Product code: 66539
Packing: 25 kg /drum

1. We need 10 tons of selenium powder now. Wed appreciate it if you could offer us the best price and tell me the earliest delivery time.
2. We hope that we can establish a long-term cooperation relationship for this product based on the quantity of 10 to 20 tons every month.