Concrete ring siamna atana hman tur thil awm zat chhiar
Dimensions chu millimeter-ah tarlan rawh
D - Concrete ring diameter a ni
A - Wall thickness a ni
H - Sanzawng
He program hi concrete ring siamna atana hmanraw leh volume chhiarna atana ruahman a ni.
Concrete volume, ring chhunga volume leh diameter, reinforcing mesh dimension leh area te chu chhut a ni.
Concrete ring hmangin tuikhuah leh septic tank siam a ni.