1.what is steel grating ?( parking lot grate )  -- Steel grating is made by bearing bar and cross bar according to the flat-steel weft arrangement, in high-pressure spacing on resistance welder welded by cutting, incision, opening, overlock process such as processing and into customer requirements finished products.       2.steel grating specification-   parking lot grate   panel size available(black grating): 1000x5800mm or 1000x6000mm ,7315*1000mm    Bearing bar pitch    Cross bar pitch  load steel size ( Width ×Thickness) 20×3 25×3 32×3 40×3 20×5 25×5 30 100 G203/30/100 G253/30/100 G323/30/100 G403/30/100 G205/30/100 G255/30/100 50 G203/30/50 G253/30/50 G323/30/50 G403/30/50 G205/30/50 G255/30/50 40 100 G203/40/100 G253/40/100 G323/40/100 G403/40/100 G205/40/100 G255/40/100 50 G203/40/50 G253/40/50 G323/40/50 G403/40/50 G205/40/50 G255/40/50 60 50 - G253/60/50 G253/60/50 G403/60/50 G205/60/50 G255/60/50 Bearing bar pitch  Cross bar pitch load steel size (Width ×Thickness) 32×5 40×5 45×5 50×5 55×5 60×5 30 100 G325/30/100 G405/30/100 G455/30/100 G505/30/100 G555/30/100 G605/30/100 50 G325/30/50 G405/30/50 G455/30/50 G505/30/50 G555/30/50 G605/30/50 40 100 G325/40/100 G405/40/100 G455/40/100 G505/40/100 G555/40/100 G605/40/100 50 G325/40/50 G405/40/50 G455/40/50 G505/40/50 G555/40/50 G605/40/50 60 50 G325/60/50 G405/60/50 G455/60/50 G505/60/50 G555/60/50 G605/60/50 3. Anping metal walking grates introduction--  parking lot grate Bearing bar type Flat bar I bar Serrated bar  Cross bar type Twisted bar Round bar  flat bar  Production process welded Pressure locked   Surface treatment Self-colour Galvanized painted  application Platform walkway&floor Trench cover Steel stair treads  Suspended ceiling Barrier fence   bearing bar types:  surface treatment: mill finish,hot dip galvanized,painted 4.steel grating standard--  parking lot grate Steel Grating  Standard  Steel Grating Standard Steel Standard Tool Box Set,Box Spanner Set,Craftsman Tool Box Set,Tool Kit Box For Home Ningbo Hoya Electronic Commerce Co., LTD , https://www.jauhitools.com
serrated type,I type,plain type 
Model NO.: G405/40/100
Application: Car Parking,Car Washing Station,Port Trench..
Trademark: Jiuwang
Specification: 505/30/100
Origin: Hebei Anping
HS Code: 7308900000