| 硫化钡买家 |
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| | We are looking for USP grade of Bas940, if it's possible for you to provide us free sample for testing, please contact with us. tks
| | | | | I am from Ulan-Ude, Russia. Can you send me samples of barium sulfide and barium carbonate? I need a high-purity substances. What could be the minimum order and the price ?
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