- Double Hinged
- Double Hinged System
- Slotted Pin Is Used In Hinged System
- Double Hinged System Ensures Cover opening At 180˚
- Double Hinged Cover to 180°
- Hinged System Prevents Unauthorized Use
- Manuel Locking
- Four Bolts Locking System Available
- Four bolt is Used In Manual Locking System
- Locking System Prevents Unauthorized Use
- Rubber Gasket
- The Groove of the Grate is Cleaned for Placing Rubber Gasket System
- One of the Rubber Gasket System is Using T Shape Gasket
- Rubber Gasket System Prevents Noise Pollution