1.Steel bar grating 2.galvanized steel bar grating 3.welded steel grating 4.bar grating 5.Through ISO 9001 Steel Bar grating1. type: plain, serrated, 1,press-locked2. G405/30/100, ... ,BS4306,JIS G3101 SS4002,Stainless steel SUS 304 SUS316Specification of steel bar grating: Item No.Bearing bar pitchCross bar pitchSpecification of bearing bar load(width * thickness) 20 ...