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The Pioneer series also uses the refrigerant R134a, with a maximum sample capacity of 2200 RT, which is energy efficient, stable and reliable, and easy to use and maintain.

This makes the Thunderbolt series widely used in a variety of energy-saving air conditioning and refrigeration systems.

The Icool series air-cooled screw heat pump is another new energy-saving product from kaiyuan, bringing together advanced technological achievements in the industry.