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  6. Delivery example: 4mm river sand for S Kindergarten in Shimonoseki City, sand play area.

Delivery example: 4mm river sand for S Kindergarten in Shimonoseki City, sand play area.

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last updated:Jul 09, 2026

瀬戸内 有限会社瀬戸内
瀬戸内 有限会社瀬戸内
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Children can play barefoot on mountain sand without shells or foreign objects! Ideal for sandpits in kindergartens and nurseries.

We would like to introduce a case where "4mm mountain sand" was delivered to the sand play area of S Kindergarten in Shimonoseki City. We received an inquiry stating, "The sand pit uses sea sand, which contains sharp shells and poses a danger for children playing barefoot. Does mountain sand contain shells?" In response, we replaced approximately 4.5m3 of sand with "4mm mountain sand." The children were able to play barefoot on the shell-free mountain sand right away. Additionally, for younger children, we recommend the finer "2mm mountain sand" and the pleasantly textured "1mm mountain sand." We encourage everyone to take off their shoes and play. 【Case Overview】 ■ Delivery Location: Sand play area of S Kindergarten in Shimonoseki City ■ Delivered Product: 4mm mountain sand ■ Product Features: No shells or foreign objects *For more details, please download the PDF or feel free to contact us.

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Delivery example: 4mm river sand for S Kindergarten in Shimonoseki City, sand play area.

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  • Related Link - https://y-setouchi.co.jp/content/works?nb=9

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【List of Products】 - Mountain Sand: Mountain sand 4mm, mountain sand 2mm, mountain sand 1mm - Loam: Loam, fresh loam - Crushed Stone: Recycled crusher run, crusher run, unit crushed stone 20, graded crushed stone (particle adjustment) - Pebbles & Split Pebbles: Yellow-brown (mountain stone, weathered granite) Gray (rust gray, Kinpu sandstone) Black-green (black, serpentinite) Stone wash (blue striped, serpentinite) Green (green, green serpentinite) Orange (rust, weathered granite stone) White gravel (limestone) - Decorative Gravel: Mountain gravel (kasumi) large, mountain gravel (kasumi) medium, mountain gravel (kasumi) small Limestone gravel (white gray) Rust gravel (scattered sand, orange) Green serpentinite (green) - Cobblestones: Black (serpentinite), gray (limestone), white (limestone), Akiho (rust), Nankoku (sea stone) *For more details, please download the PDF or feel free to contact us.

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【Uses】 ■ Sand for golf course bunkers ■ Sand for golf course turf and floor ■ Leveling for soccer fields ■ Leveling for baseball fields ■ Sandpits ■ Soil for vegetable and vegetation sand cultivation *For more details, please download the PDF or feel free to contact us.

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Setouchi Limited Company Company Profile

Setouchi Limited Company Company Profile

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瀬戸内

瀬戸内 有限会社瀬戸内

Mining

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Our company has been producing high-quality mountain sand for concrete use from the mountains of Osogoe in Iwakuni City. The mountain sand is refined at our own manufacturing plant and contains a significant amount of weathered granite sourced from the mountains of Osogoe in Iwakuni City. It does not contain salt like sea sand, and we carefully wash and remove organic matter and fine soil, which has earned us a reputation for providing very clean sand. In order to meet our customers' needs, we are committed to producing better products with a focus on high quality and low cost, and we strive for continuous improvement every day.

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