... steel floor drain grate bearing bar pitches may be 15 to 20,25,30,33,35,38,40,50,60,80 ... cleaning,eay maintenance5.Good ventilation,day-lighting,heat-dispersing,resistant to sliding and explosion6.Easy installation and disassemblystainless steel floor drain ... questions. Give us a call for more details. We're here to help ! stainless steel floor drain grate