Black Steel Grating

Black Steel Grating  has short life and low cost. It is popular with customers at present.

Steel Grating Size: 1m×6m standard type (special size and American standard size are also customizable)
Material: Low carbon steel (Q235)=A36
Surface Treatment: Hot dip galvanizing, paint or no coating
Surface Shape: Plain, Serrated and I type
Steel Grating Standard: China YB/T4001-2007
America ANSI/NAAMM (MBG531-88)
Britain BS4592-1987
Australia AS1657-1992
Steel Standard: China GB700-88 / ASTM (A36) / BS4306 (43A)
Hot Dip Galvanizing Standard: China GB/T13912-92 / ASTM (A123) / BS729 
Technological Process 
(1) Material
(2) Pressure Welding
(3) Cutting 
(4) Welding of Ends Bar 
(5) Hot Dipped Galvani-zation 
(6) Final Shipment