United valve consists of a valve core and valve seat, the valve seat connected to the upper 4-5 inle......
Inverter consists of main circuit, power circuit, IPM drive and protection circuit, cooling fan an......
According to the previous approval of the Shanghai municipal government, Shanghai Petroleum and Na......
The growth of wearables and near-field applications has led to the design of wireless solutions th......
Because of oil-free screw air compressor screw on the compression process, the whole host of lubr......
1000kV UHV AC transmission project is the highest voltage level transmission and transformation pr......
Gear pump structure is very simple, that is, in its most basic form is the same size of two gears i......
1, Domestic and foreign steel wedge gate valve standard profile In a variety of pipelines and equipm......
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In view of the 500 ℃ high temperature flue gas emitted by coalbed methane (natural gas) powe......
1, arrester dimensions Surge arresters are made according to indoor and outdoor dual-use conditio......