What about design of classroom chair with desk by HongJi?
Examination of chemical examination point combing (2) cut a piece of paraffin with a knife,Into the water, floating on the waterDifficult to dissolve in water,Hardness is smaller than waterSmall hardness,Candles (1) light candles with matches,Watch the candle flame in three layersThe brightest on the second floor,The inner layer of dark paraffin is flammable,The flame is divided into three layers,The second floor is brightest,(2) take a match,Quickly flat in the flame,1 s after removal, the match Rod contact flame part black outer layer temperature is the highest(3) Use a dry beaker,Above the flame,For a moment,Remove the beaker above the flame,Quickly pour a small amount of lime water into the beaker,Oscillating beaker wall with water mist,When the candle burns, it is changed from solid state to liquid state,Vaporize again,(1) fill the two gas cylinders with water,Cover the bottle

GuangDong Longjiang HongJi Seating Co.,LTD. is domestically competitive in manufacturing and exporting public seatings. Based on honesty, HongJi advances with the times and develops by innovations. Relying on technological innovation and talents, we strive to meet customers' needs as much as possible and provide customers with better products and services. HongJi's theater chairs is mainly used in the following aspects. office chair is the main product of HongJi. It is diverse in variety. The product is carefully checked to ensure the maximized durability. It is suitable for furnishing a waiting room, an office, or any other high-traffic area. Caring service is our company Seating's highest requirement. This product comes with a 5-year warranty for the main components. If you need quality-reliable and price-affordable products, please contact us at any time!

What are the air volume of mobile welding smoke purifier? Suitable for the treatment of flue gas dust caused by metal hot processing,Through the efficient collection of equipment components at the source of smoke and waste gas,Timely stop the volatile diffusion of smoke and waste gas,Keep the air clean in the workshop.The absorbed smoke exhaust gas passes through the accuracy as high as 0.After filtering and purifying the high-efficiency filter element of 3 μm,Will meet the standard indoor emissions of clean air,Do air circulation,Reduce the energy loss of temperature and humidity in the workshop.The filtered dust is collected in the ash accumulation tank,Prevention and Control of secondary pollution,At the same time, it plays a role in recycling precious metal materials.Mobile welding smoke purifier: there is a universal wheel under the equipment,Mobile is particularly convenient.Mobile Welding dust purifier,Two arms and one arm.Depending on the working conditions on site.According to your needs,There are (1
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