... grate Introduce1>stainless steel floor drain grate bearing bar pitches may be 15 to 20,25,30,33,35,38,40,50,60 ... recommended .2>stainless steel floor drain grate cross bar pitches may be 24-200mm,of which 50mm,76mm and 100mm are recommended ... cleaning,eay maintenance5.Good ventilation,day-lighting,heat-dispersing,resistant to sliding and explosion6.Easy installation and disassemblystainless steel floor ...