About RUNHU

Runhu has over 20 years manufacturing experience of testing equipment, and we have invested our own research and development center, independent mechanical plant, assembly lines and product quality inspection workshop.
Guangzhou Runhu Instruments Co., Ltd. is aprofessional instrumentation company consisting of research, production, sales, and technical service. As a high-tech company, Runhu’s  main production includes professional testing equipment and facilities of paper, packaging, printing, fabric, plastic, film, medical masks, protective clothing, food, tobacco sheet and so on. The main products of Runhu include Air Permeability Tester, Crush Tester, Compression Tester, Tensile Tester, Tearing Strength Tester, Bursting Strength Tester and so on. The headquarters of the company locates in Tianan Energy-saving Technology Park, Panyu District, Guangzhou. Guangzhou Runhu Instruments Co., Ltd. is one of the most advanced manufacturers of southern china.
Room 411, 412, Bldg. 15, Tian’an Efficient Technology Park Headquarter Building, No. 555, North Of Panyu Road, Panyu Dist, GuangZhou, GuangDong, China (Mainland)

Measuring volume resistivity and surface resistivity of conductive materials using the four-point probe method

Four point probes are used in nanofabrication to measure the resistive properties of conducting films which may include substrates, deposited films, and doped regions on a sample surface. The four-point probe method can be used to measure volume resistivity, surface resistivity, and conductivity. The four-point probe method is the four-terminal...
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Review:Hydrogen Fuel Cells, Carbon Paper, and Bipolar Plate

Review:Hydrogen Fuel Cells, Carbon Paper, and Bipolar Plate

Hydrogen fuel cells have gained increasing attention as a sustainable energy source due to their high energy efficiency and low environmental impact. A fuel cell operates by converting the chemical energy from hydrogen fuel and oxygen into electricity, heat, and water. The key components of a fuel cell include the...
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Tensile Test

Tensile Test

The basic idea of a tensile test is to place a sample of a material between two fixtures called "grips" which clamp the material. The material has known dimensions, like length and cross-sectional area.
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Coefficient of friction, definition and measurement

Coefficient of friction, definition and measurement

Coefficient of Friction (COF) defifines the sliding interaction between two surfaces. Static Friction and Dynamic Friction (or Kinetic Friction) are defifined in many standards including GB10006,   ASTM D1894,   ISO8295,   ISO15359,  GB/T22895.
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2024-07-23