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THICKNESS GAUGE
THICKNESS  GAUGE 1 PC BS-812
For determing the flakiness index
of coarse aggregate. Galvanized
metal sheet, hole size 100 x 33.9,
90 x 26.3, 80 x 19.7, 60 x 14.4,
50 x 10.2, 40 x 7.2, 30 x 4.9