Canvas fabrics price request from Russia

Interested in your products , in particular kulirnoe canvas 110 gr . single color and printing on white, guaranteed volume of 5-7 tons per month, require payment delay of 60 KD , and the price of $4.2.
Please send the price with the terms of the maximum possible discounts, deferred payment terms , and other conditions of cooperation , depending on the volume.
Best Regards,