Non-metal mechanical seal kits for preventing contamination caused by penetrations passing through rough openings in concrete into clean rooms and other controlled environments, the kits including a base ring of structural thermosetting polyurethane for bonding to concrete around rough openings through concrete, and a disk shaped cover of structural thermosetting polyurethane that is attached to the base ring with mechanical fasteners to cover rough openings through concrete, sold as a unit

Disposable reusable dispenser syringes for laboratory use, namely, Syringes for use with instrumentation

Vacuum pumps and vacuum pump systems comprising liquid ring vacuum pumps and compressors for general industrial use

CHEMICALS FOR PRETREATING METAL FOR IMPROVING ADHESION OF COATINGS AND CORROSION RESISTANCE

packaging for air/oxygen/moisture sensitive research chemicals, namely, small quantity bottles, sold in connection with research chemicals contained therein, having a re-sealable septum and snap-cap closure mechanism

POWER OPERATED BUTTERFLY VALVES AND PARTS AND FITTINGS THEREFOR

MANUALLY OPERATED BUTTERFLY VALVES AND PARTS AND FITTINGS THEREFOR, ALL MADE WHOLLY OR PRINCIPALLY OF METAL

BUTTERFLY VALVES AND PARTS AND FITTINGS THEREFOR ALL MADE WHOLLY OR PRINCIPALLY OF PLASTICS MATERIALS

AUTOMATIC TRANSMISSION SEALER AND CONDITIONER

Metal couplings for use with industrial hoses