(1) Symptom: gear pump can not discharge the cause of the malfunction: a, the direction of rotation is reversed; b, suction or discharge valve is closed; c, the inlet without material or pressure is too low; d, viscosity is too high, the pump can not bite material. Countermeasures: a, confirm the d

Model NO.: MD 3005 Trademark: Vfinder Specification: CE and ISO

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A few days ago, the Ministry of Environmental Protection stated that from July 1, 2013, all production, import, sales and registration of vehicle compression-ignition engines and vehicles must implement the National IV emission standards. According to analysis by industry experts, there is a

At the 2012 China Rubber Annual Conference and China Rubber Industry Exhibition held yesterday, Fan Rende, president of the China Rubber Industry Association, predicted that this year, China's rubber industry will increase its total industrial output value and sales revenue by about 18

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Vaccine cold chain vehicle manufacturer_Jiangling New Transit V362 vaccine transfer vehicle_CDC dedicated safety In terms of safety, the new crown vaccine, like other vaccines, has undergone animal experiments, pre-testing experiments, population phase I/II, and phase I

Vaccine cold chain vehicle manufacturer_Jiangling New Transit V362 vaccine transfer vehicle_CDC dedicated safety In terms of safety, the new crown vaccine, like other vaccines, has undergone animal experiments, pre-testing experiments, population phase I/II, and phase I

According to statistics from the National Equipment Rental and Used Equipment Professional Committee, by the end of 2010, only the transaction volume of used construction machinery nationwide had exceeded 100 billion yuan, and the trading volume exceeded 5 million units. In the past 2011,

The National Development and Reform Commission and the Ministry of Industry and Information Technology recently issued the “Twelfth Five-year Development Plan for the Food Industry” (hereinafter referred to as the “Planning”) to raise the level of research and devel

(1) Absorption principle Near-infrared light refers to electromagnetic waves with wavelengths between 0.78 and 2.52 μm. Various electromagnetic waves have a certain amount of energy. The ability of various substances to selectively absorb energy from electromagnetic waves. In other word