China's plastic pipe industry is thriving

At present, the processing capacity of the plastic pipe industry has exceeded 5000kt. In 2008, the output of plastic pipe fittings was 4593.4kt, an increase of 28.18% over the same period of last year. The export volume of plastic pipe reached 356.3kt, an incr

Rotary piston pump unloading new technology

I. Preface At present, the domestic railroad light oil tanker trucks are unloaded and unloaded. The unloading process is summed up in the following three ways: First, the vacuum unloading process; and second, the volumetric pump-assisted centrifugal pump unloa