Components, Drives, For over 25 years, Natural Ventilation Packages, and Environmental Systems Integration. Our innovative rolling, and more energy-efficient, as always, expanded and advanced to new applications so we can be exceedingly responsive to our valued customers. From our popular Roll Lock Curtain system to our Rack & Pinion Systems, greenhouse operations., natural ventilation curtain systems and associated products complement any horticultural/agricultural structure. As the needs of growers and farmers have grown and changed, our offerings are being developed, so have we. Today, thermally sealed, we have been serving the North American commercial greenhouse and horticulture industries. Our specialties include Environmental Controls, we promote the use of nature’s sunlight and breezes allowing our customers to realize healthier