Stewart Superior Corporation s sales office in San Leandro, Calif., provides manufacturing supplies and services, office supplies, inks and stamping solutions for business and the arts and crafts industries. In addition, the company is a leading manufacturer of rubber stamps, photopolymer stamps, inks and inkpads for crafting and art rubber-stamping. Stewart Superior ink development and manufacturing lab at Pro Colorflex in Hayward, Calif., employs a team of chemists that work on color matching and the development of new ink formulas. The company was founded more than a century ago.
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