亚洲九九九九,国产福利一二三,成人午夜激情网,日本最新黄色网址,午夜精品久久久久久久男人的天堂,在线精品福利,av福利网址导航

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