As a main provider for school desk suppliers, GuangDong Longjiang HongJi Seating Co.,LTD. is deeply trusted by customers. 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 public seatings is mainly used in the following aspects. theater chairs is the main product of HongJi. It is diverse in variety. The product is praised by our customers for its high performance and good durability. It will help users keep on task with ergonomic comfort that minimizes fatigue. Serving customers well is a motive for HONGJI to keep competitive. The materials of its armrest can be PU, plastic or wood (beech wood, oak wood, walnut wood, etc.). If you need quality-reliable and price-affordable products, please contact us at any time!

Effect of excessive manganese content of SPCC materials on materials Manganese is an indispensable trace element for human beings,The iron and manganese needed in the human body mainly comes from food and drinking water.It is generally believed that too much manganese is harmless to the human body,Manganese in China is only regarded as an index of sensory traits.However,Too much iron in the water,It can also cause harm.According to the determination,When the concentration of iron and manganese in water exceeds a certain limit,It will produce red-brown sediment,Life,Can be in white fabric or water utensils,Leave a yellow spot on the sanitary ware,At the same time also easy to make iron bacteria breeding clogging pipeline.Too much iron and manganese in drinking water,It can cause physical discomfort.According to the United States,Scientists from Finland have proved,Too much iron in the human body has an impact on the heart,Even more dangerous than cholesterol.Therefore,High-speed rail high-mangane

How to determine the filter bag size and quantity of the bag filter? Determination of filter bag specifications, quantity and size of filter bag.?1 According to the filter wind speed checked in the dust removal technical manual, it should be controlled at 1.2-2.Requirements of 0 m/min,It is initially determined that the filtered wind speed is 2 m/min,?2 according to the air volume parameters of the fan, we determine that the gas processing capacity is 10314m3/h?3 according to the treatment gas volume and filtration wind speed, the net filtration area of the collector is calculated according to the following formula A = VQ60M3: Q-Processing gas volume (m3/h );?VN-Net filtered wind speed (m/min );?AN = Q/60VN = min/min60/3 VMQM = min/2min60/103143 = 85.95m2 according to the known parameters, we can calculate the filter area of 86 ㎡.According to the selection of specifications 130 × 2.The filter area of one-meter filter bag is 0.85 ㎡ ),A = Π d × L × N, N = 1.213.014.386 = 101,It takes 101 filter bags.To ensure