The cast iron pipe is used for water supply, drainage and gas transmission pipeline.
铸铁管用于给水、排水和煤气输送管线，它包括铸铁直管和管件。
2
The paper introduced the improved device for reducing water content in pattern material and pipetransmission for recovered material during waxloss process.
介绍了在脱蜡过程中减少模料含水量设备的改进及回收模料的管道输送方法。
3
Smooth performance and to ensure non-adhesion properties of HDPE pipe has a higher than conventional transmission capacity pipe, but also reduces the pressure loss in piping and water consumption.