Minghe Sand Casting Org Is Professional Sand Casting Encyclopedia Base.
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Hot core box coated sand for high smoothness. Low-cost green sand (recommended Nanjing red sand), resin sand with high dimensional accuracy (divided into water-washed sand and scrubbed sand) Coated sand. The surface of the sand particles is covered with a layer of solid resin film molding sand or core sand before molding. There are two […]