Minyu 76 Sand & Gravel, Concrete & Asphalt Recycling is San Diego North County's producer of construction aggregates, primarily sand, gravel and crushed stone.:::Minyu San Diego Rock Supply sandiegorocksupply 2021-03-09T20:04:35-08:00. Our Location: 1931 Jamacha Road El Cajon, CA 92019. Phone (619) 441 7625
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