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Specification for construction of drainage boards

1, stored in a dry and ventilated environment drains to prevent exposure, away from sources of ignition.

2, vertical or horizontal drainage protection plate, not italic, or cross-horizontal, stack height not exceeding 3 storeys, not heavy pressure.

3, when laying flat nature, or water laying along the slope.

Shop 4, geotextile, lap guarantee 150cm, bonding with glue or compaction of sand to avoid moving and then backfill, proceed only after the first layer of backfill soil keep ramming and hierarchy backfill must concentrate on.

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