Tianjin Shunjinhua Machinery Manufacturing Co Ltd
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High quality 30x3 hot dipped galvanized steel bar grating stair treads from China supplier

Specification: 1-100 USD/PIECE
Use Parts: 10 PIECE
Supply Ability: 200000 PIECE
Payment Terms: TT , LC , Others
Place of OriginTianjin, China(Mainland)
Brand NameShunjinhua Trade
Surface treatmentpolishing Hot dip galvanizing
Texture of materialStainless steel, aluminium alloy, iron
Types of Flat SteelPlain, dentate, type I
Overall dimensionsCustomizable
Bearing rod heightAs required
Connecting rod shapeRound, twisted square steel
ApplicationSteel structure, platform, drainage
Bearing rod thicknessAs required
Specification1-100 USD/PIECE
Use Parts10 PIECE
Supply Ability200000 PIECE
Payment TermsTT , LC , Others

Detailed Instruction


product name steel grating     steel grille
1 Material Standard Low carbon steel (ASTM A36, A1011, A569, S275JR, SS304, SS400,UK: 43A)
2 Bearing bar 20x5, 25x3, 25x4, 25x5, 30x3, 30x4, 30x5, 32x3, 32x5, 40x5, 50…75x8mm,or as customers’ requirement.
3 Bearing bar pitch 25, 30, 30.16, 32.5, 34.3, 40, 50, 60, 62, 65mm,or as customers’ requirement.
4 Cross bar 5x5, 6x6, 8x8mm (twisted bar or round bar)
5 Cross bar pitch 40, 50, 60, 65, 76, 100, 101.6, 120, 130mm or as customers’ requirement.
6 Surface treatment Black, Hot dip galvanized, Cold dip galvanized, Painted, Powder coated, or as customers’ requirement.
7 Flat bar type Plain, Serrated (tooth-like), I bar (I section)
8 Galvanizing standard CN: GB/T13912, US: ASTM (A123), UK: BS729
9 Steel grating standards

A. China: YB/T4001-1998


C. UK: BS4592-1987

D. Australia: AS1657-1988

E: Japan:JJS



1. High strength, light structure: solid grid pressure welding structure has advantages of high load, light structure, easy installation.
2. Fine appearance, durable in use: hot zinc dipping surface treatment makes it own fairly good corrosion resistance, bright and beautiful surface.
3. Good ventilation, lighting, thermal, anti-explosion, and anti-skid performance.
4. Prevent dirt deposition.


It is widely used for platform, aisle, trestle, drain cover, manhole cover, steel ladder, fence, and guardrail in the fields including petrochemical, power station, sewage treatment plant, mechanical manufacture, mechanical and electrical equipment, paper mill, cement plant, pharmacy, food processing, municipal engineering, environmental engineering, etc.

Packing & Delivery

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152 kilometers of national highway 104, east side of gaogaolou village, jinghai town, jinghai district, Tianjin,China


Shunjinhua is specialized in manufacture and export all kinds of steel gratings with the best quality, competitive price and faster delivery time. Such as steelmill black and hot dip Galvanizing grating flooring walkway, platform and steel structures, stair tread, well cover, trench cover, compound gratings, storage shelves, ladder, fences and handrail so on for construction project, oil project, seaport, power plant, water plant, defense project, chemical factory and so on.

Tianjin Shunjinhua Machinery Manufacturing Co Ltd