Helical seal helix angle α at 5 ° 6 'when the minimum power, and 15 ° 39' take.......
In 2012, it was a new beginning. In the spring, the ceramic .......
Centrifugal pump with its simple structure, convenient use and maintenance of hot oil pump, hi.......
Centrifugal stainless steel centrifugal pump centrifugal pump generally driven by the motor, .......
In 2011, under the severe challenge of the “three troika†of investment, export .......
In 2012, home companies that had struggled from the "wi.......
1 Introduction
With the development of the national economy, power us.......
Electric three-way control valve with high precision, stable and reliable operation. The conflu.......