... requirementDelivery Detail:15-18daysSpecifications1.continuous working temperature 2.Shape: Disc with hole 3.Plating: Ni coated 4. customized ... 48H, 30SH-45SH, 30UH-40UH, 28EH-38EH, 28AH-35AH4. Shape: Disc(Cylinder), Block, Ring, Countersunk, Segment and more, ... trapezoid, irregular shape, customized shapes are available5. Max. Size shape: Length or Outer diameter 220mm6. Coating ...