Stair Tread

We can design and produce 8 types of galvanized stair treads. JT1: no nosing, welded fixing JT2:no nosing,Bolted fixing JT3:checkered plate nosing, welded fixing JT4:checkered plate nosing, bolted fixing JT5:vertical plate nosing, welded fixing JT6:vertical plate nosing, bolted fixing JT7:vertical striped plate nosing, welded fixing JT8:vertical striped plate nosing, bolted fixing Ningbo Jiulong Machinery Manufacturing Co.,Ltd is the second largest steel grating manufacturer in China. We have 7 running lines with yearly capacity of 50,000tons. Jiulong grating and related steel productshave exported to more than 30 countries. Choose Jiulong grating is your right decision! Standard descriptions:NoItemDescription1Bearing bar25x3,25x4,30x3,30x4,30x5,32x5,40x5,50x5,.....75x10mm2Bear bar pitch12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 34.3, 35, 40,41,60mm. US standard: 1"x3/16", 1 1/4"x3/16", 1 1/2"x3/16", 1"x 1/4", 1 1/4"x 1/4", 1 1/2"x 1/4" etc.3Cross bar pitch38,50,76,100,101.6mm4MaterialQ235,A36,SS3045Surface treatmentBlack, hot dipped galvanising, paint6StandardChina: YB/T 4001.1-2007USA: ANSI/NAAMM(MBG531-88)UK: BS4592-1987Australia: AS1657-1985