- Whole diameter:16″
- Blinding Hole Design:
In the main plate of the manhole cover , there is one blinding holes can be installed with thread Dip Tube.
- Benefit and Features :Big plate is used the plate to punch forming. The material of big plate and dimension can be produced according to user’s demand.
Can change the installment mode to hopped type according to demand.
Can be installed double P/V vent valve according to requirement to increase the flow rate of air
