flooring grating,grate,steel grating,stair tread,d

Detail of description of flooring grating,grate,steel grating,stair tread,drain cover,walkway,bar grating,plain galvanized platform steel grating The plain galvanizedplatformsteel gratingcommonly used on bridge,refinery ,power plant,Sewage treatment plant and so on. Description: 1) Bearing bar specification: 20 x 3 to 100 x 6 2).Bearing bar pitches maybe12.5,15,25, 30,34,40,50,60,80mm,of which 30 and 40mm are recommended. 3).Corss bar pitch maybe 38-200mm,of which 50 and 100mm are recommond. 4).Type of bearing bar can be plain, serratted and I bars. 5).Material can be Q235(mild steel), stainless steel. 6).Treatment of surface: untreated or galvanized. 7).US standard is also in our production area.