Product Name: Building Materials Expanded metal Heavy Galvanized Steel Grating Material: Carbon Steel Manufacturing Method: Machine Welding Shape: Flat Shape Application: Steel Structure Walkway, Foot Pedal, Drain Cover Certification: CCC, ISO Bearing Bar: 25X3, 25X4, 25X4.5, 25X5, 30X3, 30X4, 30X4.5, 30X5 Bearing Bar Pitch: 12.5, 15, 20, 23.85, 25, 30, 30 Twisted Cross Bar Pitch: 38.1, 50, 60, 76, 80, 100, 101.6, 120mm, Surface Treatment: Black, Self Colour, Hot DIP Galvanized, Painted Color: Silver,Black Trademark: fuhua or the buyer's mark Transport Package: by Pallet or According to The Buyer's Requirement Origin: Anping, China HS Code: 7308900000 Product Description Steel Grating(Plain Steel Grating Flat Steel Grating & Serrated Steel Grating / Tooth Shape Steel Grating)1) Bearing Bar (Load Bar) (mm): 20 x 3 to 100 x 9;the specification of "I-section" is 25 x 5 x 3, 32 x 5 x 3, 38 x 5 x 3, 40 x 5 x 3, 50 x 5 x 3, 50 x 7 x 4, 55 x 7 x 4, 60 x 7 x 4, 65 x 7 x 4, 70 x 7 x 4, 75 x 7 x 4, etc.2) Bearing Bar Pitch (center to center):12.5 to 100 mm etc, also be according to client's requirement and 30, 40, 60mm are recommended, America standard is available3) Cross Bar Pitch (center to center):from18.5 to 101.6mm etc, also be according to client's requirement and 50, 100mm are recommended, America standard is available.4) Steel Grating Material:Q235 Steel or stainlesssteel grating.5) Steel GratingSurface Treatment:Untreated, Painting or Hot Dipped Galvanizing6)Quality Standard:Steel Grating Standard:ChinaYB/T4001-1998AmericaANSI/NAAMM (MBG531-88)BritainBS4592-1987AustraliaAS1657-1992Steel Standard:ChinaGB700-88 / ASTM (A36) / BS4306 (43A)Hot Dip Galvanizing Standard:ChinaGB/T13912-92 / ASTM (A123) / BS7297) Application of Steel Grating: Floor;Catwalk;Mezzanines/decking;Stair tread;Fencing;Vault bin floor;Ramp;Dock/Warehouse;all kinds of trench cover;Window and machinery safe guards;Wash rack;Ventilation screen;Storage rack;Suspended ceiling;Drainage pit cover,etcspecifications (1)max panel size available for 1000x5800mmBearing bar pitch Cross bar pitchload steel size (Width ×Thickness)20×325×332×340×320×525×530100G203/30/100G253/30/100G323/30/100G403/30/100G205/30/100G255/30/10050G203/30/50G253/30/50G323/30/50G403/30/50G205/30/50G255/30/5040100G203/40/100G253/40/100G323/40/100G403/40/100G205/40/100G255/40/10050G203/40/50G253/40/50G323/40/50G403/40/50G205/40/50G255/40/506050-G253/60/50G253/60/50G403/60/50G205/60/50G255/60/50Bearing bar pitchCross bar pitchload steel size (Width ×Thickness)32×540×545×550×555×560×530100G325/30/100G405/30/100G455/30/100G505/30/100G555/30/100G605/30/10050G325/30/50G405/30/50G455/30/50G505/30/50G555/30/50G605/30/5040100G325/40/100G405/40/100G455/40/100G505/40/100G555/40/100G605/40/10050G325/40/50G405/40/50G455/40/50G505/40/50G555/40/50G605/40/506050G325/60/50G405/60/50G455/60/50G505/60/50G555/60/50G605/60/50(2)Surface treatment&appliacation: mill finish,hot dip galvanized, paintedBearing bar typeFlat barI barSerrated barCross bar typeTwisted barRound barflat barProduction processweldedPressure lockedSurface treatmentSelf-colourGalvanizedpaintedapplicationPlatformwalkway&floorTrench coverSteel stair treadsSuspended ceilingBarrier fence(3)steel grating standardSteel Grating StandardSteel Grating StandardSteel StandardGalvanizing StandardChina StandardYB/T 4001.1-2007GB700-88GB/T13912-2002USA StandardANSI/NAAMM (MBG531)ASTM (A36)ASTM (A123)U.K. StandardBS4592BS4360 (43A)BS729Australia StandardAS1657AS3679AS1650Deutsche StandardDIN24537DIN17100-80DIN50976