Grid sieves are used for the determination of particle shape, flakiness index of aggregates.
Each sieve made from stainless steel wired, electrostatic painted frame.
Consist of 40 – 31,5 – 25 – 20 – 16 – 12,5 – 10 – 8 – 6,3 – 5 – 4 – 3,15 – 2,5 mm sizes.