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Stone (3/4") size 19 mm. Manufactured for ready mixed concrete and reinforce concrete including asphalt surface and construction. Produce to standard of ASTM C33 and AASHTO M6/M80 or customer requirements.

Stone (1/4") size 0.074 – 0.002 mm. Processing by various size of stone production therefore, it must be test before use, then take the tested compare with ASTM C33 or AASHTO M6/M80. This type of stone suitable manufacturing concrete block , use as material instead sand before placing concrete , mixing asphalt surface , mixing low compressive strength concrete etc.

Blacksand Processing from stone size 0.074 - 0.002 mm. by gliding and washing. Produce instead sand for construction and use for manufacturing concreteblock etc.