แผ่นรองท่อคอนกรีต
Precast concrete pipe bedding slab, size 0.05 x 0.35 x 1 m.
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O gutter Curve stone
O-Gutter curb stone — a drainage channel with a built-in curb, collecting large volumes of roadside water; easy to clean.
O-GUTTER
O-Gutter closed drainage channel, widths 15, 30, 40, 60 cm, length 2.0 m — for road crossings, load capacity up to 52 tonnes.
