... , 70 x 7 x 4, 75 x 7 x 4, etc. 2) Bearing Bar Pitch (center to center)12.5, 15 ... , 41.25, 45, 50, 60, 60.32, 80, 100 mm etc,America standard is available :1'' x 3/16'', 1 1 ... FairPlease contatc: kevinYou will get what you want! Offshore platform/Industrial platform steel grating(TUV certificated)