Dear Sir Madam,This is abdurrahman from BD.I'm looking for products with the following specifications:1. Gypsum- 18%S & 20% Ca, 2. Zinc Sulte(Hepta)- 23% Zn & 11% S, 3. Zinc Sulte (Mono)36% Zn & 18% S, 4. Boric acid- 17% B. 5. Solubor boron-20% B, 6. Borax7. Magnesium Sulte- 12.5 % S and 9.5% MgPlease send us the details. Thanks.