| Series |
70xx,72xx.73xx.74xx.32xx.33xx.QJ,QJF series |
| Rings Material |
Chrome steel-GCr15, GCr15SiMn |
| Cages Material |
steel ,brass,nylon |
| ID size |
45X85X19 cm |
| Quality standard |
ISO9001:2000 |
| Precsion |
P4,P5,normal level |
| Tolerance Grade |
GB/T307.1-205 |
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