About Us. Established in the year 1991, We “Kenonic Controls And Engineering” are the leading Manufacturer and Supplier of Glass Dropper Bottles, Glass Vial, Glass Dropper, Glass Tube, Woven Fiberglass Fabrics And Roving, Glass Bottles, Storage Glass Vial, HPLC Vials, Glass Shell Vial, Silicone Rubber Stopper, etc.