As we all know, nano-materials science and engineering has become a worldwide hotspot in the study of surface modification of nano-materials, large terrace contact angle measurement, often involves wetting contact angle of this concept. So-called contact angle is the drop on a solid horizontal plane in a droplet on a solid surface solid - liquid - gas at the junction of the three-phase contact angle measurement JCY, the gas - liquid interface and solid - liquid interface of the liquid two tangents relative to the folder in which the angle formed by the time. JC2000A Intravenous contact angle / interfacial tension gauge is based on the improvement JC98A contact angle measuring instrument for measuring the contact angle of a liquid on a solid, liquid to solid ie wettability, but also measure the foreign minister of contact with the liquid angle. The instrument can measure a variety of liquid contact angle of various materials handheld type contact angle measurements, such as bulk materials, fiber materials, textile materials, powder samples can also be measured in the tablet. Also the contact angle, the instrument can also measure advancing angle and receding angle. The instrument of oil, printing and dyeing, pharmaceutical, coating, processing and other sectors of research and production has a very important role, especially used in surface modification of materials research more prominent, the other can be used as laboratory equipment Teaching. Angular contact bearings angular antennae letter code FAG standard: ACD-- contact angle of 25 degrees. B-- contact angle of 40 degrees. CC-- contact angle of 12 degrees. CD-- contact angle of 15 degrees. BE-- BE-bearing contact angle of 40 degrees, the ball increase in glass fiber reinforced polyamide 6.6 cage. NSK Standard: A-- angular contact ball bearings, the contact angle of 30 degrees. A5-- angular contact ball bearings, the contact angle of 25 degrees. B-- angular contact ball bearings, the contact angle of 40 degrees. C-- angular contact ball bearings, the contact angle of 15 degrees. C-- tapered roller bearings, the contact angle of 20 degrees. D-- tapered roller bearings, the contact angle of 28 degrees. SKF standard: AC 7220AC a = 25 ° angular contact ball bearings 46220B 7218B a = 40 ° of angular contact ball bearings 66218C 7211C a = 15 ° of angular contact ball bearings 36211 US Kono contact angle | Shengding instrument (Online) | contact angles provided by the Dongguan City Ding Sheng Precision Instrument Company. Dongguan Sheng Ding Precision Instrument Co., Ltd. (www.dgshengding.com) (www.dgshengding.com) Dongguan, Guangdong, dedicated instrumentation leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. Sheng Ding instrument in leadership with the staff warmly welcome all inquiries negotiations to create Shengding instrument better future.