According to DIN. 8063 and equivalent to ISO 4422, EN 1452 and the Egyptian standard specification ES 848 in addition to this it produces drainage pipe fitting according to DIN 19534, DIN 19531, ISO 4435, EN 1401 and its equivalent international and Egyptian ES 1717.  Watertightness 0.5 kg / cm2 duration 15 minutes

Note :
The pipeline may change its position due to axial force. We recommend securing the pressure plugs by adequate supports against the wall of the manhole.