欧美激情午夜,日韩xxxx做受欧美,韩日色,午夜精品久久久久久久久,欧美手机在线,国产福利在线免费,国产美女在线精品观看

1.application of the sewage grinder

2.Flow rate

3.Width of the channel(for channel type) or connection of the flange(for pipeline type)

4,Height of the channel

5.water level

6.solid type

7.explosion proof class

8.Power of the motor

9.if the motor will immerse in the water