Rainwater tank (underground)
GRAF
* Load-bearing, also for lorries depending on compaction
* Requires installation trench at low depth
* Long life
* Resistant to 35 °C
* Exterior bitumen-insulated in accordance with DIN6607
Application:
Collector for rainwater in:
* industrial areas
* office buildings
* schools, town halls
* apartment buildings
* car washes, sports fields
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