... plating round base plate with slots and holes for heavy machinery product namedimension(mm)materialfinish and weight(kg)base plateOD250 ... *M20*90º d12H12S355JR nickle plating ,7.6kgbase plate for heavy machinery can be used in petroleum ,water, gas and other ... ,shafts ,cylinders,inserts,lifting and cargo-handling appliances, and machinery parts for the usages on textile ,passenger elevator and wind ...