联系我们
Tel:+86-532 80915579
Fax:+86-532 66759532
Email:sales@seavincn.com
Add:Rm.1906 Bohai Center,No.83 Fuzhou South Road,Qingdao,China.
Features
△Adopt advanced steel ring technology ensures excelent performance
△Adopt high quality GCr15 bearing steel with special wear-resisting and antioxidant appearance, the mirco-hardness about HV830 to HV900 at any point from its surface to inside. It owns compact and refined Martensitic structure.
△High precision process ensures roundness tolerance and flatness at 0.013mm which leads to less friction.
△Working life is 5 times of common super polished steel ring about 3-5 years which keeps the quality of yarn stable chronically.
△Trademark: JF, J+F and H.Yue.