Type of Stair tread
Type of Tread: JT4 Nosing: Checkered Plate Nosing Mounting: Bolted fixingType of Stair tread
![ttb10](https://img5.grofrom.com/www.njmmgrating.com/uploads/36798613.jpg)
Packing
![ttb11](https://img5.grofrom.com/www.njmmgrating.com/uploads/bfe3249b1.jpg)
Steel Grating Standard | Steel Material Standard | Hot galvanizing Standard |
China: YB/T4001.1-2007 | China: GB700-2006 | China: GB/T13912-2002 |
U.S.A: ANSI/NAAMM | U.S.A: ASTM(A36) | U.S.A: ASTM(A123) |
U.K: BS4592 | U.K: BS4360(43A) | U.K: BS729 |
Australia: AS1657 | Australia: AS3679 | Australia: AS1650 |
![ggb7](https://img5.grofrom.com/www.njmmgrating.com/uploads/6066e2e0.jpg)
Type of Steel Grating
Comparison of Feature:![TIM20180920172336](https://img5.grofrom.com/www.njmmgrating.com/uploads/b628872b1.png)