巴西采购需求：表面应力计

I'm looking for a quotation for your stress meters that includes detailed pricing, availability, sample size, measurement duration, and any training info you offer. It's crucial to know if the equipment can measure ion-exchange stresses related to specific lithium and sodium interactions. Additionally, as my purchase will be funded by FAPESP, I need to confirm which payment terms you can accommodate from the following options: Net 15 Days, Net 30 Days, Sight Draft, Cash Against Documents, or Letter of Credit. Your prompt response would be greatly appreciated!