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flanges



outer diameter
D(mm)
inner diameter d(mm)
rim height H(mm)
materia
executive standard
use
850-2200
750-2000
80-250
20#、16Mn、Q345,etc
industry standards such as NB/T47008-2010, YB4068-91, GB/T 30895-2014 and technical agreements, , manufacturer standards and technical requirements raised by the customer slewing bearing, port machinery, petroleum chemistry and ship building etc