... our Task 1.Material:carbon steel or stainless steel2.Bearing bar:from 20x3mm to 100x10mm/ I section from 25x5x3mm to ... : NoItemDescription1Bearing bar25x3,25x4,30x3,30x4,30x5,32x5,40x5,50x5,.....75x10mm2Bear bar pitch12.5, 15, 20, 23.85, 25, 30, 30. ... guarantee:Our products have got ISO9001 Quality Certificate.common specification: PVC coated after galvanized plain bar steel grating (HT-GG-003)