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Product Number

Model ΦD C±0.13 Φd±0.13 r a≈
Model:41620Y ΦD:16±0.18C±0.13:5.5Φd±0.13:6.2r:2a≈:6.4
Model:41930Y ΦD:19±0.18C±0.13:7Φd±0.13:7.2r:3a≈:7.4
Model:41620YZ ΦD:16±0.18C±0.13:5.5Φd±0.13:6.2r:2a≈:6.4
Model:41930YZ ΦD:19±0.18C±0.13:7Φd±0.13:7.2r:3a≈:7.4