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  1. Home
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  3. Civil Engineering Materials
  4. Road, bridge and tunnel materials
  5. Grating
  6. Steel Grating | General Drainage Channel Cover (Drop-in Type)

Steel Grating | General Drainage Channel Cover (Drop-in Type)

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High Ten Grating NGP/KGP/NGH/KGH

last updated:Apr 25, 2026

宝機材
宝機材
  • Official site

Environmentally friendly high-tensile steel grating.

This is a steel grating used as a cover for on-site cast side ditches (general ditches). It is designed to be dropped into a step created using a receiving frame. We offer various standard sizes for ditch widths of 300, 350, 400, etc., and can accommodate smaller and special sizes as well. It is listed as a general product (high-tensile steel grating) and can be widely used in both public and private construction projects. The main material uses high-tensile steel, which has a higher strength than conventional steel, achieving an average cost reduction of 2% compared to the same standard SS400 steel grating, as well as weight reduction and approximately 25% reduction in CO2 emissions during manufacturing and transportation. It is available in a wide range of specifications, including coarse and fine mesh, cross-sectional and longitudinal, and load capacities from T-2 to T-25.

    Inspection hatches, manhole covers, and ditch coversGutters and U-shaped guttersGrating
NGP.jpg

Steel Grating | General Drainage Channel Cover (Drop-in Type)

NGP.jpg
NGP.jpg

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basic information

Main material: High-tensile steel Standard specification: Anti-slip pattern Surface treatment: Hot-dip galvanized Load capacity: T-25/T-20/T-14/T-2/Pavement Vehicle direction: Perpendicular to the main material

Price information

Standard sizes refer to the price list. Non-standard sizes will be quoted separately.

Delivery Time

Please contact us for details

Applications/Examples of results

For roadside drainage

Detailed information

  • バキューム6.jpg

    Structure of Grating Bearing Bar: The main member that supports the load, arranged vertically, at equal intervals, and parallel to each other. Twist Bar: An auxiliary member electrically pressure-welded at a right angle to the bearing bar, using twisted hexagonal steel to keep the bearing bars vertical and parallel, preventing buckling. End Bar: Steel material welded at the end (end) in a direction perpendicular to the main member to provide edging.

  • ハイテン1.jpg

    The slip-resistant pattern on the surface of the grating maintains a slip resistance value of BPN 40 or higher in wet conditions.

  • 粗目.jpg

    Coarse type Main material pitch 30 millimeters

  • 細目.jpg

    Detail Type Main Material Pitch 12.5 mm or 15 mm

  • NGH.jpg

    Detail Type Product Photo

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High-tenue grating

High-tenue grating

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Treasure Equipment Comprehensive Catalog 2026

Treasure Equipment Comprehensive Catalog 2026

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NGP Standard Size and Price List (2026)

NGP Standard Size and Price List (2026)

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NGH Standard Size and Price List (2026)

NGH Standard Size and Price List (2026)

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Company information

宝機材

宝機材

Building materials, supplies and fixtures manufacturers

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This is a lightweight and strong grating called "High Ten Grating." We design, manufacture, and sell steel grating, stainless steel grating, FRP grating, steel gutters (steel drainage ditches), and steel retaining walls. We contribute to "creating a gentle environment" with environmentally friendly, sustainable gratings and our original products that incorporate innovative ideas.

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The related categories of Inspection hatches, manhole covers, and ditch covers

  • Civil Engineering Materials
  • Road, bridge and tunnel materials
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  • Gutters and U-shaped gutters
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  • Inspection hatches, manhole covers, and ditch covers
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