TECNOSEAL

Alloys of common metal; Aluminum alloys; Aluminum and its alloys; Anodized common metals; Galvanized steel sheets; Galvanized steel plate.

Anodes; Cathodic protection apparatus, namely, overprotection, underprotection, and protection status monitoring systems, active antifouling and impressed current cathodic protection systems; Cathodic anti-corrosion apparatus, namely, electronic devices for eliminating corrosion from cathodes and galvanic anodes; Cathode ray tubes.