1. Caustic Soda-flake-99% purity
2. Soda Ash light--99.2% purity
3. Sodium Sulphate Anhydrs. ph-8-9,9-10
4. Hydrogen Peroxide--50% conctr.
5. Pumic stone-2-3cm, 3-5 cm
6. Paraffin wax
7. Starch
8. Glacial Acetic acid
9. other org./ inorg. basic chemicals.

Mr.Quazi Gholam Hossain, CEO
Ridan International Co.
58/M, West Rajabazar
Dhaka-1215, Bangladesh.
Tel: +88-02-9142410
Mob: +88-0193-7651907
Email: ridanint@yahoo.com
: qghossain@yahoo.com