Profile: Advance Seals Technology is engaged in manufacturing, export and supply of high precision pump seals & mechanical seals. Our products include water seals Ast-o-201, AST-M-202, AST-ME-202 and water seals AST-E-203. Our seals are used in water, sewage, oil pump, generators and muddy water. Our materials include carbon, tungsten, ceramic and silicon carbide. Our water seals feature internal mounting, single acting and is independent in rotation.