L-K Industries - Oil Testing Equipment Suppliers Worldwide for over 73 years. We supply products like Portable Centrifuges, Portable Sample Heaters, Lab Model Centrifuges, Lab Model Sample Heaters, Lab Accessories, Sample Tubes, API Gravity Hydrometers, Gaging Tapes, Oil Thiefs, L-P Gas Corrosion Test Cylinder, Swivels & Woolsey Joints