Aerating pumps for aquaria; Apparatus for aerating water; Aquarium pumps; Biodiesel-generation machines, namely, mixing equipment, pumps and heaters; Circulating pumps; Electric pumps for swimming pool, aquarium; Filters for Steam cleaning machines; Glow plugs; Heat exchangers being parts of machines; Machine parts that heat and maintain temperature in machine piping systems, namely, steam jacketing, electrical tracing, and insulation sold as integral components of finished machines; Mobile s...