| Free samples of products produced by Stron LLC | For all customers |
| Efficiency of manufacturing | For all customers |
| Maximum customer care | For all customers |
| Wholesale discounts | Depending on the quantity of purchased products |
| Cumulative discounts | Depending on the dynamics of purchases |
| Free rapid test of purchased products after 3 months. | Upon purchase of the heat carrier from 3 tons |
| Free rapid test of purchased products after 3 and 12 months. | Upon purchase of the heat carrier from 10 tons |
| Free laboratory control of purchased products after 3 and 12 months. | Upon purchase of the heat carrier from 20 tons |
