... : manufactured according to customers' requirementsFor example:1) Bearing bar pitches may be 12.5 ... 1''x3/16'', 1 1/4''x3/16'', 1 1/2''x3/16'', 1''x1/4'', 1 1/4''x1/4'', 1 1/2''x1/4'', 1''x1/8'', 1 1 ... /4''x1/8'', 1 1 ... AS1657-1985,Germany: DIN24537-1-2006, Japan:JIS steel grating for ceiling grate cover (factory)