... & saving work time. Advantages of steel grid plank: light weight, strong intensity, big load capacity, transmission and aeration, anti- ... -88Features: manufactured according to customers' requirementsFor example:1) Bearing bar pitches may be 12.5, 15 to 30, 40, ... , spray coating 6Grating StylePlain / Smooth, Serrated /teeth, I bar, serrated I bar 7StandardChina: YB/T 4001.1-2007, USA: ANSI/NAAMM ...