Heating element : OD: Outer Diameter;HZ: Length Of Hot Zone;CZ: Length Of Cold Zone;OL: Total Length, ... A: Shank spacing Order Sample of heating element1) U ... Shape, OD-20mm, HZ-300mm, CZ-350mm, OL-650mm, A-60mm, ... /2.24Ω4) Straight, OD-20mm, HZ-150mm, CZ-100mm, OL-350mm, Resistance-2.24Ω Specify as: ...