Nov. 14, 2023 – Quarry Days is an annual event held at Komatsu’s Arizona Proving Grounds that offers dealers and customers the opportunity to operate Komatsu mining and construction equipment, learn about the latest technology innovations and talk to product experts. SEMCO’s Donna Schmidt, editor of North American Mining magazine is on-hand to represent Rock Products. Komatsu’s Arizona Proving Grounds is a 660-acre site…
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