GD-6532 Crude Petroleum and Petroleum Products Salt Content Tester

GD-3554 Petroleum Wax Oil Content Tester

GD-12579 Lubricating Oils Foaming Characteristics Tester

GD-509A Existent Gum Tester

GD-8019 Existent Gum Tester

GD-8019A Existent Gum Tester

GD-3069 Naphthalene Crystallizing Point Tester

GD-0168 Petroleum Products Color Tester

GD-8017A Petroleum Products Vapor Pressure Tester(Reid Methods)

GD-100 Plastic Water Content Tester

GDE-1B Engler Viscometer (Doub Units)

GD-5208 Rapid Low Temperature Closed Cup Flash Point Tester

GD-3536D Automatic Flash Point Tester

GD-4530F Atomic Absorption Spectrophotometer

GD-765Lab UV-VIS Spectrophotometer Ultraviolet Visible Spectrophotometer

GD-723N Visible Spectrophotometer

GD-S410 Laboratory NIR spectrophotometer

GD-752N UV-VIS Spectrophotometer

GD-93 Laboratory liquid concentration testing instruments Fluorescence Spectrophotometer

SLQ series portable adjustable converter /High Current Generator