... as per international standard 3.Sufficient processing skil steel casting rotary kiln supporting roller We can provide supporting rollers, thrust rollers ... can be widely used in the area of cement mill,rotary kiln etc.7.Heat treatmentNormalized,Normalized and Tempered, Quench and Tempered ... *16.1m*(-3.5m),2 sets bell type heat treatment furnace(max 18m*7m*4m. Standard:ASTM,BS,NF,DIN,JIS ...