Caustic soda rises at high risk

After the National Day, the prices of caustic soda in Henan, Hebei, Shandong and other regions quickly rose, radiating overall market turnover in other regions of the country. The mainstream price in the northern region was up from 1,600 yuan (32% ion membrane or 100 tons, the same below) before th

Micro-pump working principle

Miniature self-priming pump works: circular motion of the motor, the pump through the mechanical mechanism to reciprocate the diaphragm inside to compress, stretch the pump cavity (fixed volume) of the air, the role of the one-way valve in the drainage The formation of positive pressure at the mout

China's UHV transformer leading global

The world's first 1000kV 1000MVA UHV (two-column) autotransformer was successfully developed by China Xidian Group. This 1000kV 1000MVA UHV transformer was designed and manufactured by Xi'an Xideng Transformer Co., Ltd. and manufactured by Changzhou Xidian Transformer Co., Ltd. It

Classification and Application of CNC Machine Tools

● Classification by process purpose Metal cutting type CNC machine tools, including CNC lathes, CNC drilling machines, CNC milling machines, CNC grinding machines, CNC boring machine and machining centers. These machines are suitable for single-piece, small-batch and multi-species a