... -high temperature 3.mechanical seals good 4.anti- ceramic rod connect with 304 or 316l stainless steelOur company can supply many ... plunger pump, ceramic rod, ceramic shaft, ceramic piston, ceramic water valve sheet, ceramic pipe sleeve, ceramic loom plunger, ceramic seal ring ... 0.005Parallelism0.01Planeness0.005Roughness 0.05Fit clearance0.005 ceramic rod connect with 304 or 316l stainless steel