Any further technical information about computerized cutting machine ?
2019-04-30
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When did the sewing machine be invented? In fact,The first sewing machine was American Elias Hao (1819 -?1867) invention (patent number: 4750 ).Elias hausheng grew up in Spenser, Ma,At a local textile factory, apprentices grew up as a capable mechanic.Maybe it's interest,He was devoted to the study of sewing machines,By April 1845,Finally created a practical sewing machine.Public demonstration certificate,His invention is five times more efficient than the agile sewing manual operation.Elias Hao is difficult to succeed in the market-oriented of the machinery he invented in the United States,I went to England on 1846,And sold the British copyright of the machine with a large manufacturer of women's beasts, shoes and umbrellas, William Thomas.But when he returned to the United States,But found some manufacturers,Including Isak Shengjia, who has begun to produce and sell sewing machines similar to his invention,So a long time, from 1849-The 1854 five-year lawsuit for rights protection began,And finally defend t
1000 w electric furnace wire can be used as 48 euro power resistance? This needs to know what the rated voltage of 1000 W electric wire is?If the voltage is 380 V,380 V/1000 W = 144.If the voltage is 220 V,220 V/1000 W = 48.So only the resistance of the 220 V electric wire is 48.4 euros.If,Of course, it can be used for high-power loads less than 1000 W.
The suspended matter before filtration is smaller than the suspended matter after filtration. what's the matter? The filter of base oil usually uses a liquid filter bag.Liquid filter bag is suitable for lubricating oil,Rail oil,Quench oil,Hydraulic oil and other oil industries.Mainly remove suspended matter inside the oil,Granular impurities,Gel impurities,Mechanical impurities, etc.The filtering accuracy is 0.5-500 micrometers.