JK Machinery has years of experience on HVAC system. The HVAC - heating, ventilation, and air conditioning is the technology of indoor and automotive environmental comfort.

Spiral duct, a kind of round tube that formed by steel strips, the material could be stainless steel, galvanized steel, aluminum, etc. The spiral tubes are widely used in all fields of industries. Like the HVAC ducting works, transport dust, concrete project work, etc.

JK concentrate in HVAC duct machinery for serveral years, we specialized in the spiral tubeformer for making the spiral duct, the aluminum flexible tubeformer to make the flexible aluminum duct. When it comes to solutions concerning ventilation system, we are a reliable partner you can rely on.