Dear Sir, We have an inquiry of Sand Proppant as per API RP56 as below: Mesh 20/40 – 550NT Mesh 100 - 650 NT Please quote us best pricing CIF Port of Houston. Please also provide complete specification sheet ie conductivity, sphericity, turbidity, SG, Solubility, Crush Stress & Sieve Analysis etc. Please feel free to contact us if you have any questions. We shall appreciate your prompt reply. Best Regards, Subhash Loura SDB Trade International, LP 817 E. Southmore, Suite 301 Pasadena, TX 77502 Tel: 713-475-0048 Fax: 713-475-0083