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May 2016 visit to the historic dondero marble quarry, located on private property 4 mi.West of volcano, amador county, california stone-splitting and sculpture demonstrations at the oneto ranch.The historic dondero marble quarry is located on private property and is owned by the oneto family, p.Box 694, jackson, ca 95642.
We are a large-scale joint-stock enterprise integrating scientific research, production and sales.Our leading products have crushing equipment, sand making equipment, mobile crusher, etc., Each type of product is with complete specifications. All products have passed ISO9001, CE and GOST international quality system certification.